Abstract
Diabetes is an increasing global health burden with the highest prevalence (24.0%) observed in elderly people. Older diabetic adults have a greater risk of hospitalization and several geriatric syndromes than older nondiabetic adults. For these conditions, special care is required in prescribing therapies including anti- diabetes drugs. Aim of this study was to evaluate the appropriateness and the adherence to safety recommendations in the prescriptions of glucose-lowering drugs in hospitalized elderly patients with diabetes. Data for this cross-sectional study were obtained from the REgistro POliterapie–Società Italiana Medicina Interna (REPOSI) that collected clinical information on patients aged ≥ 65 years acutely admitted to Italian internal medicine and geriatric non-intensive care units (ICU) from 2010 up to 2019. Prescription appropriateness was assessed according to the 2019 AGS Beers Criteria and anti-diabetes drug data sheets.Among 5349 patients, 1624 (30.3%) had diagnosis of type 2 diabetes. At admission, 37.7% of diabetic patients received treatment with metformin, 37.3% insulin therapy, 16.4% sulfonylureas, and 11.4% glinides. Surprisingly, only 3.1% of diabetic patients were treated with new classes of anti- diabetes drugs. According to prescription criteria, at admission 15.4% of patients treated with metformin and 2.6% with sulfonylureas received inappropriately these treatments. At discharge, the inappropriateness of metformin therapy decreased (10.2%, P < 0.0001). According to Beers criteria, the inappropriate prescriptions of sulfonylureas raised to 29% both at admission and at discharge. This study shows a poor adherence to current guidelines on diabetes management in hospitalized elderly people with a high prevalence of inappropriate use of sulfonylureas according to the Beers criteria.
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Introduction
Type 2 diabetes is an increasing global health burden with a global prevalence reaching pandemic proportions. This rising prevalence has been attributed mainly to the ageing of populations [1]. It is estimated that there are currently 537 million people living with diabetes worldwide and among these 135.6 million are individuals aged 65–99 years [1, 2]. Prevalence of type 2 diabetes increases with age with the highest prevalence (24.0%) being observed in individuals aged 75–79 years [1]. Furthermore, the prevalence of type 2 diabetes in hospitalized patients aged 65–75 years and over 80 years of age has been estimated to be 20 and 40%, respectively [3,4,5,6]. It is estimated that the number of people with diabetes will continue to rise rapidly in the next years. Indeed, future projections of International Diabetes Federation (IDF) Diabetes Atlas suggest that by 2045 the absolute number of people with type 2 diabetes will have increased by 46% and the number of people older than 65 years with diabetes will reach 195.2 million by 2030 and 276.2 million by 2045 [1, 2].
Older adults with type 2 diabetes have higher rates of coexisting illnesses, such as hypertension, coronary heart disease, stroke, and functional disability, than those without diabetes [7, 8]. Furthermore, older adults are more apt to require hospitalization than younger adults, and, particularly, those with diabetes are at very high risk of hospitalization. Additionally, older adults with type 2 diabetes are also at greater risk than older nondiabetic adults for several common geriatric syndromes, such as cognitive impairment, injurious falls, polypharmacy, increasing the risk of drug side effects, and drug-to-drug interactions [7,8,9]. For these conditions, special care is required in prescribing and monitoring pharmacologic therapies including anti-diabetes drugs, in older adults [9, 10].
Insulin therapy is the preferred pharmacological approach to manage hyperglycemia in hospitalized patients with type 2 diabetes [3]. For patients in non-intensive care units (ICU) settings, subcutaneous basal insulin alone or in combination with prandial insulin, is effective and safe [3]. Selecting the treatment regimen in elderly patients is based on patient’s nutritional status, body weight, and hypoglycemia risk. The use of noninsulin antihyperglycemic agents is not recommended for the management of hyperglycemia in hospitalized patients with type 2 diabetes [3].
Metformin is considered the first-line therapy for older adults with type 2 diabetes due to its efficacy and safety profile [8,9,10,11]. However, metformin should be temporarily discontinued during hospitalizations, before procedures, and when acute illness may compromise renal or liver function or may induce heart failure because of the increased risk of lactic acidosis [8, 10].
Sulfonylureas are associated with increased risk of hypoglycemia and should be used with caution in older people [8]. Notably, the American Geriatrics Society (AGS) Beers Criteria 2019 recommended to avoid glimepiride and glibenclamide for the high risk of severe prolonged hypoglycemia [12]. The use of thiazolidinediones may precipitate or worsen heart failure and peripheral edema [3].
Instead, there is a particular interest in the use of dipeptidyl peptidase 4 (DPP-4) inhibitors in hospitalized patients with type 2 diabetes for their few side effects and neutral effects on major adverse cardiovascular outcomes [3, 5, 11,12,13,14,15]. Moreover, in hospitalized patients, treatment with DPP-4 inhibitors has been associated with similar glycemic control, and lower rates of hypoglycemia compared with insulin regimens [3, 16, 17]. Nevertheless, it has been reported that saxagliptin treatment is associated with an increased risk of hospitalizations for heart failure, also in elderly and very elderly patients [18]. The cardiovascular (CV) safety data on the effects of DPP-4 are conflicting since some randomized clinical trials and some real-life studies have reported an increased risk of hospitalizations for heart failure [19], while a recent meta-analysis shows that DPP-4 inhibitors do not increase the risk of heart failure [20]. Therefore, the choice of treatment with DPP-4 inhibitors in the elderly patient with type 2 diabetes should take into account of comorbidities, especially heart failure.
Results of cardiovascular outcome trials (CVOT) have shown that treatment with sodium–glucose cotransporter 2 inhibitors (SGLT2i) and GLP-1 receptor agonists (GLP-1 RA) is associated with cardiovascular protection in diabetic patients with established atherosclerotic cardiovascular disease (ASCVD) and in those with higher ASCVD risk with benefits observed also in patients older than 65 years of age [21,22,23,24,25,26,27,28,29,30]. However, the increased risk of urinary and genital tract infections observed in patients treated with SGLT2i, the possible occurrence of volume depletion, and the development of diabetic ketoacidosis among patients with type 2 diabetes make the use of SGLT2 inhibitors less attractive in acutely ill hospitalized patients with hyperglycemia [3]. On the other hand, treatment with GLP-1 RA may not be advisable in some frail older patients, particularly those suffering from malnutrition sarcopenia, and cachexia, given that their use is associated with gastrointestinal side effects [3, 9].
The inappropriate use of anti-diabetes drugs is frequent, especially in the elderly hospitalized patients. However, although prior studies have shown a high prevalence of potentially inappropriate prescribing for adults living with type 2 diabetes, none of these studies have used an explicit tool specifically designed to identify inappropriate prescribing among people with diabetes, especially in older people [31].
The aim of this study was to evaluate the appropriateness and the adherence to safety recommendations in the prescriptions of anti-diabetes drugs both at hospital admission and at discharge in a cohort of elderly patients with type 2 diabetes hospitalized in internal medicine and geriatric non-ICU participating in the REPOSI registry study.
Methods
Setting
Data for this cross-sectional study were obtained from the register REgistro POliterapie – Società Italiana Medicina Interna (REPOSI), an ongoing collaboration between the Italian Society of Internal Medicine (SIMI), IRCCS Fondazione Ca` Granda Ospedale Maggiore Policlinico, and the Istituto di Ricerche Farmacologiche Mario Negri IRCCS. The REPOSI is a multicenter and prospective register that started in 2008 in order to collect clinical and therapeutic information on patients aged 65 years or older acutely admitted to 102 Italian internal medicine and geriatric non-ICU during four index weeks during each season. Data collections were continued in 2010, 2012, 2014, 2016 and 2019.
The project’s design has been previously described in detail [32,33,34]. Briefly, patients were eligible for REPOSI if: (1) they were admitted to one of the participating regional internal medicine non-ICU during the four index weeks chosen for recruitment (one in February, one in June, one in September, and one in December); (2) their age was 65 years or older; (3) they gave informed consent. Each non-ICU had to enroll at least five consecutive eligible patients during each index week, recording data on socio-demographic details, diagnoses, treatment (including all drugs taken at hospital admission, and those recommended at discharge). Then, a final database was created and checked by the Istituto di Ricerche Farmacologiche Mario Negri IRCCS. All patients with and without diabetes were included in the present study analysis. Participation was voluntary, and all patients provided signed informed consent. REPOSI was approved by the Ethics Committee of the participating centers. The study was conducted according to Good Clinical Practice and the Declaration of Helsinki.
Data collection
REPOSI register includes 8417 older adults admitted to the participating internal medicine and geriatric wards enrolled from 2010 up to 2019. For this study, data from 5349 patients with complete information were evaluated (Fig. 1). According to the ADA criteria [35], individuals were classified as having type 2 diabetes when fasting plasma glucose was ≥ 126 mg/dl (> 7 mmol/l), or were treated with antidiabetic drugs. Patients with type 1 diabetes were excluded from enrollment from participating centers. All patients with type 2 diabetes were screened in order to determine what type of anti-diabetes drugs they were prescribed, both at hospital admission and discharge. Hospital admission therapy refers to the treatment taken at home before the admission. Anti-diabetes drugs use at admission and discharge was coded according to the Anatomic Therapeutic Chemical (ATC) Classification System. We used the following ATC codes: insulin therapy: A10A, metformin: A10BA, Sulfonylureas: A10BB, Glinides: A10BX02, Pioglitazone: A10BG03, DPP-4 inhibitors: A10BH, GLP-1 RA: A10BJ, SGLT2 inhibitors: A10BK, Acarbose: A10BF01.
Flowchart of the study population
Socio-demographic and clinical characteristics
Socio-demographic variables, such as age class, marital status, living arrangement, and need for assistance in daily living, were considered, along with laboratory findings in patients with diabetes compared to the ones without it. The following clinical characteristics were evaluated: cognitive status (assessed by the Short-Blessed-Test (SBT) [36]; performance in activities of daily living at hospital admission (measured by means of the Barthel Index (BI) [37]; severity and comorbidity index (assessed by the Cumulative-Illness-Rating-Scale (CIRS-s and CIRS-c, respectively)) [38]; glomerular filtration rate (eGFR) (using the Chronic Kidney Disease Epidemiology Collaboration formula) [39]; length of hospital stay; drug prescriptions (at admission and at discharge). Polypharmacy was defined by the contemporary chronic use of 5 or more drugs [40].
Criteria for inappropriate/appropriate prescription and adherence to guidelines recommendations
Prescription appropriateness was assessed according to the 2019 American Geriatrics Society Beers Criteria [12], and the indications according to the European Medicines Agency (EMA) and Italian Medicines Agency (AIFA) anti-diabetes drug data sheets. Briefly, in patients with type 2 diabetes hospitalized for exacerbations of chronic diseases or in the case of acute diseases, it is recommended to prescribe insulin therapy [8, 12]. Metformin therapy is inappropriate for eGFR values < 30 mL/min/1.73m2, during acute illness, acute myocardial infarction, metabolic acidosis, shock and respiratory failure for the increased risk of lactic acidosis [8, 12]. Sulfonylureas and other insulin secretagogues are not recommended in older adults for the increased risk of hypoglycemia [8, 12]. Furthermore, sulfonylureas are inappropriate during severe kidney and liver failure and acute illness [8, 12]. Pioglitazone is inappropriate during heart failure, several liver impairment and bladder cancer [8, 12]. Moreover, it is recommended caution in the use of pioglitazone in case of osteoporosis and history of bone fractures [8, 12]. GLP-1 RA therapy is inappropriate in case of acute pancreatitis and end-stage renal disease [8, 12]. SGLT2 inhibitors are inappropriate during severe renal failure [8, 12].
Statistical analysis
We divided our sample in two groups according to the presence of type 2 diabetes at admission in hospital. For each patient the presence of this condition was defined using directly the diagnosis and/or the prescriptions of anti-diabetes drugs. The patients' socio-demographic characteristics were presented using standard descriptive statistics. We tabulated percentages for discrete variables, mean and standard deviations for continuous variables. Differences between the two groups were evaluated with Pearson’s chi-squared test. Mean and standard deviations for numerical variables were evaluated with Mann Whitney’s test. Normality for clinical continuous features was checked with Kolmogorov–Smirnov and Anderson–Darling tests.
Successively, on the subgroup of all diabetic subjects regardless of whether it occurred before or during the hospitalization, we performed a pre-post analysis using McNemar’s test in order to evaluate the change of anti-diabetes prescription from admission to discharge. Analogue analyses were performed to assess the appropriateness of each anti-diabetes classes investigated.
Successively, on the sample of diabetic subjects, we studied the relationship between mortality at 3 months after discharge and appropriateness of the antidiabetic therapy according to the combination of the EMA and AIFA data sheets and 2019 AGS Beers criteria; we conducted a logistic model regression first univariately and then adjusting Odds Ratios (OR) for age, sex and comorbidity index. A logistic regression analysis adjusted by age, gender, number of drugs, comorbidity index and eGFR (dichotomized using a threshold of 30 mL/min/1.73m2, according to prescriptive criteria) was conducted to evaluate causes of inappropriateness in prescriptions of anti-diabetic drugs. Confidence Intervals (CI) were calculated using Wald’s test.
For each statistical test, the significance criterion (alpha) was set at 0.05.
All analyses were performed using SAS software, version 9.4 (SAS Institute, Inc.; Cary, NC).
Results
Clinical characteristics of the elderly population according to diabetes diagnosis
For this analysis, 5349 patients acutely admitted to 102 Italian internal medicine and geriatric non-ICU during the period from 2010 up to 2019 were evaluated; among them, 1624 (30.3%) had diagnosis of type 2 diabetes, and 3725 were patients without history of diabetes (69.7%) (Fig. 1). During the hospitalization 72 patients were diagnosed as having newly diagnosed type 2 diabetes leading to a total number of 1696 patients with diagnosis of diabetes at hospital discharge. All clinical parameters evaluated with Kolmogorov–Smirnov and Anderson–Darling tests resulted not normally distributed (all p < 0.01 using the first test and all p < 0.005 using the second one).
As shown in Table 1, patients with type 2 diabetes were more likely to be men, younger, married, not living alone, and ex-smoker as compared with nondiabetic patients (Table 1).
Patients with type 2 diabetes had higher BMI (27.8 ± 5.5 kg/m2 vs 25.2 ± 4.7 kg/m2, P < 0.0001), and were more often overweight (39.2% vs 34.1%, P = 0.0007) and obese (26.6% vs 13.9%, P < 0.0001) than nondiabetic patients (Table 1). Moreover, a significant higher proportion of patients with type 2 diabetes had comorbidities, such as hypertension, myocardial infarction, peripheral vascular disease, heart failure, liver disease, and chronic kidney disease with significant higher creatinine levels and lower eGFR as compared with nondiabetic patients (Table 1, Table 2). Furthermore, even if we observed a higher proportion of dementia in nondiabetic individuals than patients with type 2 diabetes, no significant differences were observed regarding overt cognitive impairment between patients with and without diabetes (Table 1, Table 2).
As expected, patients with type 2 diabetes showed significant higher fasting plasma glucose levels than those without diabetes (Table 2). Moreover, patients with type 2 diabetes exhibited significantly higher levels of systolic blood pressure, and lower levels of heart rate and total cholesterol than nondiabetic individuals (Table 2).
Patients with type 2 diabetes exhibited higher severity index assessed by CIRS-s (1.8 ± 0.3 vs 1.6 ± 0.3, P < 0.0001) and comorbidity index assessed by CIRS-c (3.8 ± 1.9 vs 2.9 ± 1.9, P < 0.0001) as compared with nondiabetic patients, also excluding diabetes in the assessment of CIRS (Table 2). Furthermore, a significant higher proportion of patients with type 2 diabetes took more of 5 chronic drugs and more of 10 chronic drugs (excluded drugs for diabetes) than nondiabetic individuals (Table 2).
Anti-diabetes therapy in patients with diabetes
At hospital admission, 247 patients among those with diabetes (15.2%) did not receive any type of anti-diabetes therapy, 695 (42.8%) patients were treated with only one drug, 578 (35.6%) received two, while the remaining had the prescription of three or more anti-diabetes drugs in combination.
In particular, 37.7% of patients with type 2 diabetes were treated with metformin, 37.3% with insulin therapy, 16.4% with sulfonylureas, and 11.4% with glinides. Moreover, 2.5% of patients were treated with acarbose and 1.4% with pioglitazone (Table 3). Surprisingly, at admission only 2.8% of patients with type 2 diabetes were treated with DPP-4 inhibitors, 0.1% with GLP1-RA and 0.2% with SGLT2 inhibitors (Table 3).
At hospital discharge, we found a significant decrease in the prescription of metformin (37.7% vs 27.8%, P < 0.0001), sulfonylureas (16.4% vs 9%, P < 0.0001), and pioglitazone (1.4% vs 0.4%, P < 0.0001) and a significant increase in the prescription of insulin therapy (37.7% vs 44.8%, P < 0.0001). Furthermore, at hospital discharge, we observed a nominally significant increase in the prescription of GLP-1 RA (0.1% vs 0.4%, P = 0.05), whereas no differences were observed in prescriptions of DPP-4 inhibitors, SGLT2 inhibitors, and glinides (Table 3).
We therefore analyzed the prescriptions of glucose-lowering drugs stratified by years of enrollment of patients in the REPOSI register, and we did not find significant differences compared with the overall prevalence, although we observed a trend towards a reduction in the prevalence of the prescriptions of sulfonylureas and repaglinide and an increase in those of DPP-IV inhibitors, and slightly of GLP-RA and SGLT2 inhibitors, in the years 2018–2019 compared to the years 2010–2011 (see supplemental materials, Table S1). Furthermore, we analysed the prescriptions of glucose-lowering drugs stratified by geographic areas of centers participating to REPOSI register that enrolled the patients (Northern, Central and Southern Italy). We found a significant lower rate of prescription of sulfonylureas (P = 0.0007) and a greater use of insulin therapy (P = 0.0088) both at admission and at discharge in Southern Italy as compared Northern and Central Italy (see supplemental materials, Table S2).
Appropriateness of anti-diabetes drugs, at hospital admission and discharge
According to the EMA and AIFA data sheets, among diabetic patients treated with at least one anti-diabetes drug, 99 (7.2%) resulted inappropriately treated at admission. This proportion was reduced at hospital discharge around a half (50 subjects, 3.7%, P < 0.0001). When we also considered the 2019 AGS Beers Criteria, the number of subjects not appropriately treated raised to 284 (20.6%) at admission, with a significative decrement at discharge to 239 units (17.7%, P < 0.049).
At hospital admission, 15.4% of patients treated with metformin, 2.6% treated with sulfonylureas, and 1.1% treated with repaglinide received these treatments inappropriately according to the EMA and AIFA data sheets (Table 4). At hospital discharge, it was observed a decrease in the inappropriateness of metformin therapy (10.2%, P < 0.0001). When we considered the appropriateness of anti-diabetes drugs according to the Beers Criteria, the proportion of not appropriate prescriptions of sulfonylureas raised to 28.5% at hospital admission and was similar being 29% at discharge (P = 0.92) (Table 5).
Furthermore, we analysed the appropriateness of prescriptions of glucose-lowering drugs stratified by geographic areas of centers participating to REPOSI register and we didn’t observe significant differences between Northern, Central and Southern Italy (see supplemental materials, Table S2).
At hospital admission, the most prevalent cause of inappropriateness among metformin prescriptions was the low levels of eGFR (< 30 mL/min/1.73m2) observed in 51 patients (54.3%) while, at discharge, the most prevalent cause was the acute myocardial infarction suffered by 19 patients (39.6%, see supplemental materials, Table S3).
In a logistic regression model adjusted by age, sex, number of drugs, comorbidity index and eGFR (dichotomized using a threshold of 30 mL/min/1.73m2, according to the appropriateness prescriptive criteria), only eGFR was significantly associated with inappropriate prescriptions. Notably, patients with eGFR < 30 mL/min/1.73m2 exhibited an increased risk of not appropriate treatment compared to patients with higher level of eGFR (OR 2.56 (CI: 1.88–3.49, P < 0.0001).
Appropriateness of anti-diabetes drugs and outcomes during hospitalization and after discharge
Finally, we have investigated the impact of appropriateness of anti-diabetes drugs according to the combination of the EMA and AIFA data sheets and 2019 AGS Beers criteria on length of hospitalization and mortality at 3 months of subjects with diagnosis of type-2 diabetes. We observed a similar length of hospital stay between appropriated and not appropriated treated patients with type 2 diabetes (12.6 vs 13.1 days, respectively; P = 0.43). Furthermore, we found a higher incidence of mortality at 3 months post-discharge in patients with type 2 diabetes non-appropriately treated as compared to those appropriately treated (8.4% vs 4.7%, P = 0.0196). Notably, patients with type 2 diabetes not appropriately treated exhibited a 1.84-fold increased risk of mortality at 3 months as compared to patients appropriately treated (95% CI 1.09–3.08, P = 0.0215). This increased risk remained statistically significant also in adjusted model including age, sex and comorbidity index (CIRS) (P = 0.0169). In particular, an increased risk of mortality at 3 months after discharge was associated to a point-increment of age (OR = 1.08, CI 1.04–1.11, p < 0.0001), CIRS (OR = 1.12, CI 1.01–1.24, p = 0.031) and men (OR = 1.90, CI 1.20–3.00, p = 0.0058 compared to women).
Discussion
This study aimed to evaluate the prescribing appropriateness to safety recommendations of anti-diabetes drugs in hospitalized elderly patients with type 2 diabetes both at admission and at discharge. Although previous studies have shown a high prevalence of inappropriate prescribing for outpatients with diabetes, none of them evaluated the prescriptive appropriateness of anti-diabetes drugs in hospitalized elderly patients [31]. The present analysis was performed using data obtained from the database REPOSI, including 5349 patients aged ≥ 65 acutely admitted to 102 Italian internal medicine and geriatric non-ICU wards [32,33,34]. We found that at hospital admission 16.4% of patients with type 2 diabetes were treated with sulfonylureas. According to the 2019 AGS Beers Criteria, 28.5% of these prescriptions were inappropriate on the basis of the recommendation to avoid the prescription of glimepiride and glibenclamide in elderly people for the high risk of severe prolonged hypoglycemia [12]. On the other hand, the ADA Standards of Care recommends avoiding only the prescription of glibenclamide in elderly people, although the sulfonylureas and other insulin secretagogues with caution for their increased risk of hypoglicemia [8]. Remarkably, although at discharge it was observed a nominal reduction in the prescription of sulfonylureas, 29% of patients with diabetes still remained inappropriately treated with this class of anti-diabetes drugs.
At hospital admission, more than a third of patients with diabetes were treated with metformin, and in 15.4% of the prescriptions were inappropriate according to the EMA and AIFA data sheets. Treatment with metformin is inappropriate in patients with chronic kidney failure and respiratory insufficiency, and during acute illness due to the increased risk of lactic acidosis [8, 12]. We found that hospitalized individuals with diabetes showed a significant impairment of renal function as compared with nondiabetic subjects. In particular, about 40% of patients with diabetes exhibited a moderate or severe impairment in renal function, two conditions in which treatment with metformin is inappropriate.
Furthermore, we observed that individuals with type 2 diabetes exhibited a significant higher severity index and an increase of comorbidities, such as hypertension, myocardial infarction, peripheral vascular disease, heart failure, liver disease, and chronic kidney disease as compared with patients without diabetes. Notably, most of these conditions met the criteria of inappropriateness for treatment with metformin, pioglitazone and other anti-diabetes drugs. The present analysis shows that at hospital admission the most prevalent cause of inappropriateness among metformin prescriptions was the low levels of eGFR observed in 54.3% of the patients, while, at hospital discharge, the most prevalent reason of inappropriateness was the acute myocardial infarction suffered by 39.6% of the subjects. Notably, patients with eGFR < 30 mL/min/1.73m2 exhibited an increased risk of not appropriate treatment compared to patients with higher level of eGFR. Therefore, our data underline the critical role of renal function in the evaluation of appropriate antidiabetic treatment in elderly patients hospitalized. Furthermore, respiratory failure and acute illness were the two more common causes of inappropriateness for metformin treatment in patients both at admission (20.2% and 13.8%, respectively) and at discharge (25% and 22.9%, respectively). For the high frequency of these concomitant conditions, a recently published Endocrine Society’s guideline recommended the use of scheduled insulin therapy instead of noninsulin therapies for glycemic management in hospitalized subjects with diabetes [40]. According to this recommendation, we observed that the prescriptions of insulin therapy increased significantly during the hospitalization of patients with diabetes in internal medicine and geriatric non-ICU wards. Notably, a sliding scale insulin regimen was prescribed to 19.6% of the patients. This regimen consisting in administration of short- or rapid-acting insulin 4 to 6 times a day, based on regularly obtained capillary blood glucose levels without concurrent use of basal or long-acting insulin, was not recommended by the 2019 Beers Criteria [12]. However, the most recent Endocrine Society Guidelines suggest both sliding scale and scheduled insulin regimens considering the lower risk of hypoglycemic events, but with a slightly higher daily plasma glucose levels and higher length of hospital stay observed in sliding scale insulin regimen as compared with scheduled insulin therapy [40]. Additionally, we found that almost half of patients with diabetes were discharged with insulin therapy, whereas there was a significant reduction in the prescription of noninsulin therapies at discharge as compared with the admission. The Endocrine Society Clinical Practice Guideline suggests that it may be reasonable to begin other noninsulin therapies, such as DPP-4 inhibitors, in stable patients prior to discharge as a part of a coordinated transition plan [40].
To the best of our knowledge, this is the first study that also evaluated the impact of appropriateness of anti-diabetes drugs in hospitalized elderly patients on mortality post-discharge. Indeed, we found that patients with type 2 diabetes not appropriately treated exhibited a 1.84-fold increased risk of mortality at 3 months as compared to patients appropriately treated. This increased risk remained significant also in adjusted model including age, sex and comorbidity index. In particular, the variables significantly associated with an increased risk of mortality at 3 months after discharge were age, CIRS and men. These results highlighting the importance of the appropriateness and the adherence to safety recommendations in the prescriptions of anti-diabetes drugs especially in elderly patients with comorbidities who could be exposed to an increased risk of mortality with an inappropriate treatment.
In the present study we also observed a lower prevalence of dementia in patients with diabetes as compared with patients without diabetes, in contrast to previous studies [41]; this discrepancy could be due to an underestimation of the diagnosis of dementia in hospitalized patients. Indeed, at admission more patients than those with an established diagnosis of dementia had Overt Cognitive impairment evaluated by Short Blessed Test, with no difference between patients with and without diabetes.
It was surprising to observe that at hospital admission about 3% of patients with type 2 diabetes were treated with the new classes of anti-diabetes drugs, such as GLP-1 RA, DPP-4 inhibitors and SGLT2 inhibitors, despite their efficacy and safety profile even in the elderly people with type 2 diabetes. It is conceivable that some concerns about an increased risk of euglycemic ketoacidosis and acute kidney injury especially in the patients with acute illness during the treatment with SGLT2 inhibitors have influenced the therapeutic choice. However, treatment with GLP-1 RA and DPP-4 inhibitors in hospitalized patients has been associated with similar glycemic control and lower rates of hypoglycemia compared with insulin regimens [3, 16, 17]. Moreover, given that treatment with saxagliptin has been associated with increased risk hospitalization for heart failure [18], we cannot exclude that DPP-4 inhibitors are prescribed with caution in older diabetic patients with heart failure.
Indeed, a recent meta-analysis has shown that although insulin therapy remains the preferred approach for glycemic management in hospitalized patients, treatment with DPP-4 inhibitors may be appropriate in select patients with type 2 diabetes, including those with well-managed diabetes and those with established noninsulin-requiring diabetes nearing hospital discharge [42]. A possible explanation for the low use of the new classes of anti-diabetes drugs observed in our analysis may be related to the fact that the elderly patients admitted to the REPOSI registry were enrolled from 2010 up to 2019 when data of cardiovascular outcome trial were not fully accrued and translated into clinical practice guideline. Indeed, at hospital discharge, we observed a nominally significant increase in the prescription of GLP-1 RA. Moreover, we observed a trend towards a reduction in the prevalence of the prescriptions of sulfonylureas and repaglinide and an increased use of DPP-4 inhibitors and to a lesser extent of GLP-RA and SGLT2 inhibitors, in the years 2018–2019 compared to the years 2010–2011. Clearly, future analyses on elderly patients admitted to medical and geriatric non-ICU wards after 2019 will be needed to determine if there is a greater adherence to recent guidelines on diabetes management and care in the elderly patients.
The present study has some strengths and limitations that merit consideration. A main strength is represented by the multicenter design of the REPOSI register with a large number of internal medicine and geriatric non-ICU wards throughout Italy providing a representative and unselected sample of older in-patients with multiple and severe diseases.
Nevertheless, this study has also some limitations. First, in the frame of the REPOSI register there is no information about diabetes duration and duration of the prescribed therapy. Second, HbA1c, which is the better indicator of long-term glycemic control, is lacking. Third, in the REPOSI register there is no information about any hypoglycemic events during the hospitalization. Furthermore, we observed a discrepancy in the number of patients diagnosed with diabetes at discharge that increased with respect as compared with the number of patients with diabetes diagnosis at the time of hospital admission, likely due to newly diagnosed type 2 diabetes diagnosed during hospitalization. Moreover, in the REPOSI register is not evaluated the economic status. Otherwise, in Italy, this is not an influencing factor concerning the antidiabetic therapy choice. This thanks to the nature of the national health system, which guarantee to all diabetic people to get the best and desired medicaments with a full reimbursement independently by the cost of the therapy. Because in Italy the health care is entirely tax financed, the present results are not influenced by the level of economic status of the participants at odds with other countries where health care relies on user payment. Finally, REPOSI register enrolled only Italian older in-patients and the results may not be generalizable to other ethnic groups or different geographical areas.
Conclusions
Overall, the present study shows a poor adherence to recent guidelines on diabetes management and care in hospitalized elderly people in internal medicine and geriatric non-ICU wards assessed from 2010 to 2019. Notably, we found a high proportion of inappropriate use of sulfonylureas according to the 2019 AGS Beers criteria. Furthermore, at hospital admission only ~ 3% of elderly patients with type 2 diabetes were treated with the new classes of anti-diabetes drugs, such as GLP-1 RA, DPP-4 inhibitors, and SGLT2 inhibitors, despite it has been shown to be effective, and safe drugs in elderly patients and we observed a trend towards an increase in their prescriptions in the years 2018–2019 compared to the years 2010–2011. Importantly, the inappropriateness prescriptive of the anti-diabetes drugs was associated with an increased risk of mortality at 3 months in elderly patients with type 2 diabetes hospitalized. These results highlighting the importance of the appropriateness and the adherence to safety recommendations in the prescriptions of anti-diabetes drugs especially in elderly patients with comorbidities. Future analyses on elderly patients admitted to medical and geriatric non-ICU wards after 2019 are needed to explore if there is a greater adherence to recent guidelines on diabetes management and care in elderly patients.
Data Availability
The datasets used and analysed during the current study are available from the corresponding author on reasonable request.
Change history
03 August 2023
A Correction to this paper has been published: https://doi.org/10.1007/s11739-023-03361-1
References
Sun H, Saeedi P, Karuranga S, Pinkepank M, Ogurtsova K, Duncan BB, Stein C, Basit A, Chan JCN, Mbanya JC et al (2022) IDF diabetes atlas: Global, regional and country-level diabetes prevalence estimates for 2021 and projections for 2045. Diabetes Res Clin Pract 183:109119
Sinclair A, Saeedi P, Kaundal A, Karuranga S, Malanda B, Williams R (2020) Diabetes and global ageing among 65 99-year-old adults findings from the international diabetes federation diabetes atlas. Diabetes Res Clin Pract 162:108078
Umpierrez GE, Pasquel FJ (2017) Management of inpatient hyperglycemia and diabetes in Older Adults. Diabetes Care 40:509–517
Morley JE (1999) An overview of diabetes mellitus in older persons. Clin Geriatr Med 15:211–224
Pasquel FJ, Powell W, Peng L, Johnson TM, Sadeghi-Yarandi S, Newton C, Smiley D, Toyoshima MT, Aram P, Umpierrez GE (2015) A randomized controlled trial comparing treatment with oral agents and basal insulin in elderly patients with type 2 diabetes in long-term care facilities. BMJ Open Diabetes Res Care 28(3):e000104
Zhang X, Decker FH, Luo H et al (2010) Trends in the prevalence and comorbidities of diabetes mellitus in nursing home residents in the United States: 1995–2004. J Am Geriatr Soc 58:724–730
Kirkman MS, Briscoe VJ, Clark N et al (2012) Diabetes in older adults. Diabetes Care 35:2650–2664
American Diabetes Association Professional Practice Committee (2022) Older adults: standards of medical care in diabetes 2022. Diabetes Care 45(Suppl. 1):S195–S207
Sesti G, Antonelli Incalzi R, Bonora E, Consoli A, Giaccari A, Maggi S, Paolisso G, Purrello F, Vendemiale G, Ferrara N (2018) Management of diabetes in older adults. Nutr Metab Cardiovasc Dis 28:206-218
Valencia WM, Florez H (2014) Pharmacological treatment of diabetes in older people. Diabetes Obes Metab 16:1192–1203
Inzucchi SE, Lipska KJ, Mayo H, Bailey CJ, McGuire DK (2014) Metformin in patients with type 2 diabetes and kidney disease: a systematic review. JAMA 312:2668–2675
American Geriatrics Society Beers Criteria® Update Expert Panel (2019) American Geriatrics Society 2019 Updated AGS Beers Criteria® for Potentially Inappropriate Medication Use in Older Adults. J Am Geriatr Soc 67:674–694
Green JB, Bethel MA, Armstrong PW et al (2015) Effect of Sitagliptin on Cardiovascular Outcomes in Type 2 Diabetes. N Engl J Med 373:232–242
Zannad F, Cannon CP, Cushman WC, EXAMINE Investigators et al (2015) Heart failure and mortality outcomes in patients with type 2 diabetes taking alogliptin versus placebo in EXAMINE: a multicentre, randomised, double-blind trial. Lancet 385:2067–2076
Scirica BM, Bhatt DL, Braunwald E, SAVOR-TIMI (& Steering Committee and Investigators) et al (2013) Saxagliptin and cardiovascular outcomes in patients with type 2 diabetes mellitus. N Engl J Med 369:1317–1326
Umpierrez GE, Cardona S, Chachkhiani D, Fayfman M, Saiyed S, Wang H, Vellanki P, Haw JS, Olson DE, Pasquel FJ, Johnson TM (2018) A Randomized Controlled Study Comparing a DPP4 Inhibitor (Linagliptin) and Basal Insulin (Glargine) in Patients With Type 2 Diabetes in Long-term Care and Skilled Nursing Facilities: Linagliptin-LTC Trial. J Am Med Dir Assoc 19:399-404.e3
Umpierrez GE, Korytkowski M (2013) Is incretin- based therapy ready for the care of hospitalized patients with type 2 diabetes? Insulin therapy has proven itself and is considered the mainstay of treatment. Diabetes Care 36:2112–2117
Leiter LA, Teoh H, Braunwald E, Mosenzon O, Cahn A, Kumar KM, Smahelova A, Hirshberg B, Stahre C, Frederich R, Bonnici F, Scirica BM, Bhatt DL, Raz I (2015) Efficacy and safety of saxagliptin in older participants in the SAVOR-TIMI 53 trial. Diabetes Care 38:1145–1153
Shen J, Greenberg BH (2021) Diabetes management in patients with heart failure. Diabetes Metab J 45:158–172
Zheng SL, Roddick AJ, Aghar-Jaffar R, Shun-Shin MJ, Francis D, Oliver N, Meeran K (2018) Association between use of sodium-glucose cotransporter 2 inhibitors, glucagon-like peptide 1 agonists, and dipeptidyl peptidase 4 inhibitors with All-cause mortality in patients with type 2 diabetes: A systematic review and meta-analysis. JAMA 319:1580–1591
Marso SP, Daniels GH, Brown-Frandsen K et al (2016) Liraglutide and cardiovascular outcomes in type 2 diabetes. N Engl J Med 375:311–322
Karagiannis T, Tsapas A, Athanasiadou E et al (2021) GLP-1 receptor agonists and SGLT2 inhibitors for older people with type 2 diabetes: a systematic review and meta-analysis. Diabetes Res Clin Pract 174:108737
Holman RR, Bethel MA, Mentz RJ et al (2017) Effects of once-weekly exenatide on cardiovascular outcomes in type 2 diabetes. N Engl J Med 377:1228–1239
Hernandez AF, Green JB, Janmohamed S et al (2018) Albiglutide and cardiovascular outcomes in patients with type 2 diabetes and cardiovascular disease (Harmony Outcomes): a double-blind, randomised placebo-controlled trial. Lancet 392:1519–1529
Gerstein HC, Colhoun HM, Dagenais GR et al (2019) Dulaglutide and cardiovascular outcomes in type 2 diabetes (REWIND): a double-blind, randomised placebo-controlled trial. Lancet 394:131–138
Fiorentino TV, Sesti G (2016) Effects of glucagon-like peptide-1 receptor agonists on cardiovascular risk factors and the cardiovascular system. G Ital Cardiol (Rome) 17(2):13S – 19
Zinman B, Wanner C, Lachin JM, EMPA-REGOUTCOME Investigators et al (2015) Empagliflozin, cardiovascular outcomes, and mortality in type 2 diabetes. N Engl J Med 373:2117–2128
Neal B, Perkovic V, Mahaffey KW, CANVAS Program Collaborative Group et al (2017) Cana- gliflozin and cardiovascular and renal events in type 2 diabetes. N Engl J Med 377:644–657
Wiviott SD, Raz I, Bonaca MP, DECLARE–TIMI 58 Investigators et al (2019) Dapagliflozin and cardiovascular outcomes in type 2 diabetes. N Engl J Med 380:347–357
Sciacqua A, Succurro E, Armentaro G, Miceli S, Pastori D, Rengo G (2021) Sesti G (2021) Pharmacological treatment of type 2 diabetes in elderly patients with heart failure: randomized trials and beyond. Heart Fail Rev. https://doi.org/10.1007/s10741-021-10182-x
Ayalew MB, Spark MJ, Quirk F, Dieberg G (2022) Potentially inappropriate prescribing for adults living with diabetes mellitus: a scoping review. Int J Clin Pharm. https://doi.org/10.1007/s11096-022-01414-7
Mannucci PM, Nobili A, Pasina L (2018) Polypharmacy in older people: lessons from 10 years of experience with the REPOSI register. Intern Emerg Med 13:1191–1200
Franchi C, Rossio R, Ardoino I, Mannucci PM, Nobili A (2019) Inappropriate prescription of benzodiazepines in acutely hospitalized older patients. Eur Neuropsychopharmacol 29:871–879
Argano C, Natoli G, Mularo S, Nobili A, Monaco ML, Mannucci PM, Perticone F, Pietrangelo A, Corrao S (2022) Impact of diabetes mellitus and its comorbidities on elderly patients hospitalized in internal medicine wards: data from the RePoSi registry. Healthcare (Basel) 10:86
ElSayed NA, Aleppo G, Aroda VR, Bannuru RR, Brown FM, Bruemmer D, Collins BS, Hilliard ME, Isaacs D, Johnson EL, Kahan S, Khunti K, Leon J, Lyons SK, Perry ML, Prahalad P, Pratley RE, Seley JJ, Stanton RC, Gabbay RA (2023) Classification and diagnosis of diabetes: standards of care in diabetes-2023. Diabetes Care 46(1):S19–S40
Katzman R, Brown T, Fuld P, Peck A, Schechter R, Schimmel H (1983) Validation of a short orientation-memory-concentration test of cognitive impairment. Am J Psychiatry 140:734–739
Mahoney FI, Barthel DW (1965) Functional evaluation: The Barthel index. Md State Med J 14:61–65
Linn BS, Linn MW, Gurel L (1968) Cumulative illness rating scale. J Am Geriatr Soc 16:622–626
Levey AS, Stevens LA, Schmid CH (2009) CKD-EPI (Chronic Kidney Disease Epidemiology Collaboration). A new equation to estimate glomerular filtration rate. Ann Intern Med 150:604–612
Korytkowski MT, Muniyappa R, Antinori-Lent K, Donihi AC, Drincic AT, Hirsch IB, Luger A, McDonnell ME, Murad MH, Nielsen C, Pegg C, Rushakoff RJ, Santesso N, Umpierrez GE (2022) Management of Hyperglycemia in Hospitalized Adult Patients in Non-Critical Care Settings: An Endocrine Society Clinical Practice Guideline. J Clin Endocrinol Metab 107:2101–2128
Barbiellini Amidei C, Fayosse A, Dumurgier J, Machado-Fragua MD, Tabak AG, van Sloten T, Kivimäki M, Dugravot A, Sabia S, Singh-Manoux A (2021) Association Between Age at Diabetes Onset and Subsequent Risk of Dementia. JAMA 325:1640–1649
Seisa MO, Saadi S, Nayfeh T et al (2022) A systematic review supporting the endocrine society clinical practice guideline for the management of hyperglycemia in adults hospitalized for non-critical illness or undergoing elective surgical procedures. J Clin Endocrinol Metab 107:2139–2147
Acknowledgements
Steering Committee: Pier Mannuccio Mannucci (Chair) (Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milano), Alessandro Nobili (co-chair) (Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milano), Giorgio Sesti (Presidente SIMI), Antonello Pietrangelo (Direttore CRIS – SIMI), Francesco Perticone (Università Magna Grecia Policlinico Mater Domini, Catanzaro) Francesco Violi (Policlinico Umberto I, Roma), Gino Roberto Corazza, (IRCCS Policlinico San Matteo di Pavia, Pavia), Salvatore Corrao (ARNAS Civico, Di Cristina, Benfratelli, DiBiMIS, Università di Palermo, Palermo), Alessandra Marengoni (Spedali Civili di Brescia, Brescia), Francesco Salerno (IRCCS Policlinico San Donato Milanese, Milano), Matteo Cesari (Fondazione Maugeri, Milano), Mauro Tettamanti, Luca Pasina, Carlotta Franchi (Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milano). Clinical Data Monitoring and Revision: Carlotta Franchi, Alessio Novella, Mauro Tettamanti, Gabriella Miglio (Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milano). Database Management and Statistics: Mauro Tettamanti, Alessia Antonella Galbussera, Ilaria Ardoino, Alessio Novella (Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milano). Investigators: Domenico Prisco, Elena Silvestri, Giacomo Emmi, Alessandra Bettiol, Irene Mattioli (Azienda Ospedaliero Universitaria Careggi Firenze, SOD Medicina Interna Interdisciplinare); Gianni Biolo, Michela Zanetti, Giacomo Bartelloni, Michele Zaccari, Massimiliano Chiuch (Azienda Sanitaria Universitaria Integrata di Trieste, Clinica Medica Generale e Terapia Medica); Massimo Vanoli, Giulia Grignani, Edoardo Alessandro Pulixi (Azienda Ospedaliera della Provincia di Lecco, Ospedale di Merate, Lecco, Medicina Interna); Matteo Pirro, Graziana Lupattelli, Vanessa Bianconi, Riccardo Alcidi, Alessia Giotta, Massimo R. Mannarino (Azienda Ospedaliera Santa Maria della Misericordia, Perugia, Medicina Interna, Angiologia Malattie da Arteriosclerosi); Domenico Girelli, Fabiana Busti, Giacomo Marchi (Azienda Ospedaliera Universitaria Integrata di Verona, Verona, Medicina Generale e Malattie Aterotrombotiche e Degenerative); Mario Barbagallo, Ligia Dominguez, Vincenza Beneduce, Federica Cacioppo (Azienda Ospedaliera Universitaria Policlinico Giaccone Policlinico di Palermo, Palermo, Unità Operativa di Geriatria e Lungodegenza); Salvatore Corrao, Giuseppe Natoli, Salvatore Mularo, Massimo Raspanti, Christiano Argano, Federica Cavallaro (A.R.N.A.S. Civico, Di Cristina, Benfratelli, Palermo, UOC Medicina Interna ad Indirizzo Geriatrico-Riabilitativo);arco Zoli, Maria Laura Matacena, Giuseppe Orio, Eleonora Magnolfi, Giovanni Serafini, Angelo Simili, Mattia Brunori, Ilaria Lazzari, Angelo Simili (Azienda Ospedaliera Universitaria Policlinico S. Orsola-Malpighi, Bologna, Unità Operativa di Medicina Interna Zoli); Maria Domenica Cappellini, Giovanna Fabio, Margherita Migone De Amicis, Giacomo De Luca, Natalia Scaramellini, Valeria Di Stefano, Simona Leoni, Sonia Seghezzi, Alessandra Danuto Di Mauro, Diletta Maira, Marta Mancarella (Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milano, Unità Operativa Medicina Interna IA); Tiziano Lucchi, Paolo Dionigi Rossi, Marta Clerici, Simona Leoni, Alessandra Danuta Di Mauro, Giulia Bonini, Federica Conti, Silvia Prolo, Maddalena Fabrizi, Miriana Martelengo, Giulia Vigani (Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milano, Geriatria); Antonio Di Sabatino, Emanuela Miceli, Marco Vincenzo Lenti, Martina Pisati, Lavinia Pitotti, Donatella Padula, Valentina Antoci, Ginevra Cambiè (IRCCS Policlinico San Matteo di Pavia, Pavia, Clinica Medica I, Reparto 11); Roberto Pontremoli, Valentina Beccati, Giulia Nobili, Giovanna Leoncini, Jacopo Alberto, Federico Cattaneo (IRCCS Azienda Ospedaliera Universitaria San Martino-IST di Genova, Genova, Clinica di Medicina Interna 2); Luigi Anastasio, Lucia Sofia, Maria Carbone (Ospedale Civile Jazzolino di Vibo Valentia, Vibo Valentia, Medicina Generale); Francesco Cipollone, Maria Teresa Guagnano, Ilaria Rossi, Emanuele Valeriani, Damiani D’Ardes, Lucia Esposito, Simona Sestili, Ermanno Angelucci (Ospedale Clinicizzato SS. Annunziata, Chieti, Clinica Medica); Gerardo Mancuso, Daniela Calipari, Mosè Bartone (Ospedale Giovanni Paolo II Lamezia Terme, Catanzaro, Unità Operativa Complessa Medicina Interna); Giuseppe Delitala, Maria Berria, Alessandro Delitala (Azienda ospedaliera-universitaria di Sassari, Clinica Medica); Maurizio Muscaritoli, Alessio Molfino, Enrico Petrillo, Antonella Giorgi, Christian Gracin, Giovanni Imbimbo (Policlinico Umberto I, Sapienza Università di Roma, Medicina Interna e Nutrizione Clinica Policlinico Umberto I); Giuseppe Zuccalà, Gabriella D’Aurizio (Policlinico Universitario A. Gemelli, Roma, Roma, Unità Operativa Complessa Medicina d'Urgenza e Pronto Soccorso) Giuseppe Romanelli, Alessandra Marengoni, Andrea Volpini, Daniela Lucente, Francesca Manzoni, Annalisa Pirozzi, Alberto Zucchelli (Unità Operativa Complessa di Medicina I a indirizzo geriatrico, Spedali Civili, Montichiari, Brescia); Antonio Picardi, Umberto Vespasiani Gentilucci, Paolo Gallo, Chiara Dell’Unto (Università Campus Bio-Medico, Roma, Medicina Clinica-Epatologia); Giuseppe Bellelli, Maurizio Corsi, Cesare Antonucci, Chiara Sidoli, Giulia Principato, Alessandra Bonfanti, Hajnalka Szabo, Paolo Mazzola, Andrea Piazzoli, Maurizio Corsi (Università degli studi di Milano-Bicocca Ospedale S. Gerardo, Monza, Unità Operativa di Geriatria); Franco Arturi, Elena Succurro, Bruno Tassone, Federica Giofrè (Università degli Studi Magna Grecia, Policlinico Mater Domini, Catanzaro, Unità Operativa Complessa di Medicina Interna); Maria Grazia Serra, Maria Antonietta Bleve (Azienda Ospedaliera "Cardinale Panico" Tricase, Lecce, Unità Operativa Complessa Medicina); Antonio Brucato, Teresa De Falco, Enrica Negro, Martino Brenna, Lucia Trotta, Giovanni Lorenzo Squintani (ASST Fatebenefratelli - Sacco, Milano, Medicina Interna); Maria Luisa Randi, Fabrizio Fabris, Irene Bertozzi, Giulia Bogoni, Maria Victoria Rabuini, Tancredi Prandini, Francesco Ratti, Chiara Zurlo, Lorenzo Cerruti, Elisabetta Cosi (Azienda Ospedaliera Università di Padova, Padova, Clinica Medica I); Roberto Manfredini, Fabio Fabbian, Benedetta Boari, Alfredo De Giorgi, Ruana Tiseo (Azienda Ospedaliera - Universitaria Sant'Anna, Ferrara, Unità Operativa Clinica Medica); Giuseppe Paolisso, Maria Rosaria Rizzo, Claudia Catalano, Irene Di Meo (Azienda Ospedaliera Universitaria della Seconda Università degli Studi di Napoli, Napoli, VI Divisione di Medicina Interna e Malattie Nutrizionali dell'Invecchiamento); Claudio Borghi, Enrico Strocchi, Eugenia Ianniello, Mario Soldati, Silvia Schiavone, Alessio Bragagni, Francesca Giulia Leoni, Valeria De Sando, Sara Scarduelli, Michela Cammarosano, Ilenia Pareo (Azienda Ospedaliera Universitaria Policlinico S. Orsola-Malpighi, Bologna, Unità Operativa di Medicina Interna Borghi); Carlo Sabbà, Francesco Saverio Vella, Patrizia Suppressa, Giovanni Michele De Vincenzo, Alessio Comitangelo, Emanuele Amoruso, Carlo Custodero, Giuseppe Re, Andrea Schilardi, Francesca Loparco (Azienda Ospedaliero-Universitaria Consorziale Policlinico di Bari, Bari, Medicina Interna Universitaria C. Frugoni); Luigi Fenoglio, Andrea Falcetta, Alessia Valentina Giraudo, Salvatore D’Aniano (Azienda Sanitaria Ospedaliera Santa Croce e Carle di Cuneo, Cuneo, S. C. Medicina Interna); Anna L. Fracanzani, Silvia Tiraboschi, Annalisa Cespiati, Giovanna Oberti, Giordano Sigon, Felice Cinque (Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milano, UOC Medicina Generale ad Indirizzo Metabolico); Flora Peyvandi, Raffaella Rossio, Giulia Colombo, Pasquale Agosti, Erica Pagliaro, Eleonora Semproni (Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milano, Medicina Interna 2, Ematologia non tumorale e Coagulopatie); Canetta Ciro, Valter Monzani, Valeria Savojardo, Giuliana Ceriani, Christian Folli (Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milano, Medicina Interna Alta Intensità di Cure); Francesco Salerno, Giada Pallini (IRCCS Policlinico San Donato e Università di Milano, San Donato Milanese, Medicina Interna); Fabrizio Montecucco, Luciano Ottonello, Lara Caserza, Giulia Vischi, Salam Kassem, Luca Liberale (IRCCS Ospedale Policlinico San Martino e Università di Genova, Genova, Clinica Medica 1, Medicina Interna e Specialità Mediche); Nicola Lucio Liberato, Tiziana Tognin (ASST di Pavia, UOSD Medicina Interna, Ospedale di Casorate Primo, Pavia); Francesco Purrello, Antonino Di Pino, Salvatore Piro (Ospedale Garibaldi Nesima, Catania, Unità Operativa Complessa di Medicina Interna); Renzo Rozzini, Lina Falanga, Maria Stella Pisciotta, Francesco Baffa Bellucci, Stefano Buffelli, Camillo Ferrandina, Francesca Mazzeo, Elena Spazzini, Giulia Cono, Giulia Cesaroni (Ospedale Poliambulanza, Brescia, Medicina Interna e Geriatria); Giuseppe Montrucchio, Paolo Peasso, Edoardo Favale, Cesare Poletto, Carl Margaria, Maura Sanino (Dipartimento di Scienze Mediche, Università di Torino, Città della Scienza e della Salute, Torino, Medicina Interna 2 Unità Indirizzo d'Urgenza); Francesco Violi, Ludovica Perri (Policlinico Umberto I, Roma, Prima Clinica Medica); Luigina Guasti, Francesca Rotunno, Luana Castiglioni, Andrea Maresca, Alessandro Squizzato, Leonardo Campiotti, Alessandra Grossi, Roberto Davide Diprizio, Francesco Dentali (Università degli Studi dell'Insubria, Ospedale di Circolo e Fondazione Macchi, Varese, Medicina e Geriatria); Marco Bertolotti, Chiara Mussi, Giulia Lancellotti, Maria Vittoria Libbra, Matteo Galassi, Yasmine Grassi, Alessio Greco, Elena Bigi, Elisa Pellegrini, Laura Orlandi, Giulia Dondi, Lucia Carulli (Università di Modena e Reggio Emilia, Azienda Ospedaliero-Universitaria di Modena; Ospedale Civile di Baggiovara, Unità Operativa di Geriatria); Angela Sciacqua, Maria Perticone, Rosa Battaglia, Raffaele Maio, Aleandra Scozzafava, Valentino Condoleo, Tania Falbo, Lidia Colangelo; Marco Filice, Elvira Clausi (Università Magna Grecia Policlinico Mater Domini, Catanzaro, Unità Operativa Malattie Cardiovascolari Geriatriche); Vincenzo Stanghellini, Eugenio Ruggeri, Sara del Vecchio, Ilaria Benzoni (Dipartimento di Scienze Mediche e Chirurgiche, Unità Operativa di Medicina Interna, Università degli Studi di Bologna/Azienda Ospedaliero-Universitaria S.Orsola-Malpighi, Bologna); Andrea Salvi, Roberto Leonardi, Giampaolo Damiani (Spedali Civili di Brescia, U.O. 3a Medicina Generale); Gianluca Moroncini, William Capeci, Massimo Mattioli, Giuseppe Pio Martino, Lorenzo Biondi, Pietro Pettinari, Monica Ormas, Emanuele Filippini, Devis Benfaremo, Roberto Romiti (Clinica Medica, Azienda Ospedaliera Universitaria - Ospedali Riuniti di Ancona); Riccardo Ghio, Anna Dal Col (Azienda Ospedaliera Università San Martino, Genova, Medicina III); Salvatore Minisola, Luciano Colangelo, Mirella Cilli, Giancarlo Labbadia (Policlinico Umberto I, Roma, SMSC03 - Medicina Interna F e Malattie Metaboliche dell'osso); Antonella Afeltra, Benedetta Marigliano, Maria Elena Pipita (Policlinico Campus Biomedico Roma, Roma, Medicina Clinica); Pietro Castellino, Luca Zanoli, Alfio Gennaro, Agostino Gaudio, Samuele Pignataro (Azienda Ospedaliera Universitaria Policlinico – V. Emanuele, Catania, Dipartimento di Medicina); Francesca Mete, Miriam Gino (Ospedale degli Infermi di Rivoli, Torino, Medicina Interna) Guido Moreo, Silvia Prolo, Gloria Pina (Clinica San Carlo Casa di Cura Polispecialistica, Paderno Dugnano, Milano, Unità Operativa di Medicina Generale Emilio Bernardelli); Alberto Ballestrero, Fabio Ferrando, Roberta Gonella, Domenico Cerminara, Paolo Setti, Chiara Traversa, Camilla Scarsi (Clinica Di Medicina Interna ad Indirizzo Oncologico, Azienda Ospedaliera Università San Martino di Genova); Bruno Graziella, Stefano Baldassarre, Salvatore Fragapani, Gabriella Gruden (Medicina Interna III, Ospedale S. Giovanni Battista Molinette, Torino); Franco Berti, Giuseppe Famularo, Patrizia Tarsitani (Azienda Ospedaliera San Camillo Forlanini, Roma, Medicina Interna II); Roberto Castello, Michela Pasino (Ospedale Civile Maggiore Borgo Trento, Verona, Medicina Generale e Sezione di Decisione Clinica); Marcello Giuseppe Maggio Gian Paolo Ceda, Simonetta Morganti, Andrea Artoni, Margherita Grossi (Azienda Ospedaliero Universitaria di Parma, U.O.C Clinica Geriatrica); Stefano Del Giacco, Davide Firinu, Giulia Costanzo, Giacomo Argiolas, Giovanni Paoletti, Francesca Losa (Policlinico Universitario Duilio Casula, Azienda Ospedaliero-Universitaria di Cagliari, Cagliari, Medicina Interna, Allergologia ed Immunologia Clinica); Giuseppe Montalto, Anna Licata, Filippo Alessandro Montalto (Azienda Ospedaliera Universitaria Policlinico Paolo Giaccone, Palermo, UOC di Medicina Interna); Francesco Corica, Giorgio Basile, Antonino Catalano, Federica Bellone, Concetto Principato (Azienda Ospedaliera Universitaria Policlinico G. Martino, Messina, Unità Operativa di Geriatria); Lorenzo Malatino, Benedetta Stancanelli, Valentina Terranova, Salvatore Di Marca, Rosario Di Quattro, Lara La Malfa, Rossella Caruso (Azienda Ospedaliera per l'Emergenza Cannizzaro, Catania, Clinica Medica Università di Catania); Patrizia Mecocci, Carmelinda Ruggiero, Virginia Boccardi (Università degli Studi di Perugia-Azienda Ospedaliera S.M. della Misericordia, Perugia, Struttura Complessa di Geriatria); Tiziana Meschi, Andrea Ticinesi, Antonio Nouvenne (Azienda Ospedaliera Universitaria di Parma, U.O Medicina Interna e Lungodegenza Critica); Pietro Minuz, Luigi Fondrieschi, Giandomenico Nigro Imperiale, Sarah Morellini (Azienda Ospedaliera Universitaria Verona, Policlinico GB Rossi, Verona, Medicina Generale per lo Studio ed il Trattamento dell’Ipertensione Arteriosa); Mario Pirisi, Gian Paolo Fra, Daniele Sola, Mattia Bellan (Azienda Ospedaliera Universitaria Maggiore della Carità, Medicina Interna 1); Roberto Quadri, Erica Larovere, Marco Novelli (Ospedale di Ciriè, ASL TO4, Torino, S.C. Medicina Interna); Emilio Simeone, Rosa Scurti, Fabio Tolloso (Ospedale Spirito Santo di Pescara, Geriatria); Roberto Tarquini, Alice Valoriani, Silvia Dolenti, Giulia Vannini (Ospedale San Giuseppe, Empoli, USL Toscana Centro, Firenze, Medicina Interna I); Riccardo Volpi, Pietro Bocchi, Alessandro Vignali (Azienda Ospedaliera Universitaria di Parma, Clinica e Terapia Medica); Sergio Harari, Chiara Lonati, Federico Napoli, Italia Aiello (Divisione di Medicina Interna, Multimedica IRCSS, Milano); Francesco Purrello, Antonino Di Pino (Ospedale Garibaldi - Nesima – Catania, U.O.C Medicina Interna); Teresa Salvatore, Lucio Monaco, Carmen Ricozzi (Policlinico Università della Campania L. Vanvitelli, UOC Medicina Interna); Alberto Pilotto, Ilaria Indiano, Federica Gandolfo (Ente Ospedaliero Ospedali Galliera Genova, SC Geriatria Dipartimento Cure Geriatriche, Ortogeriatria e Riabilitazione) Franco Laghi Pasini, Pier Leopoldo Capecchi (Azienda Ospedaliera Universitaria Senese, Siena, Unità Operativa Complessa Medicina 2); Ranuccio Nuti, Roberto Valenti, Martina Ruvio, Silvia Cappelli, Alberto Palazzuoli (Azienda Ospedaliera Università Senese, Siena, Medicina Interna I); Mauro Bernardi, Silvia Li Bassi, Luca Santi, Giacomo Zaccherini (Azienda Ospedaliera Policlinico Sant’Orsola-Malpighi, Bologna, Semeiotica Medica Bernardi); Vittorio Durante, Daniela Tirotta, Giovanna Eusebi (Ospedale di Cattolica, Rimini, Medicina Interna); Marco Cattaneo, Maria Valentina Amoruso, Paola Fracasso, Cristina Fasolino (Azienda ospedaliera San Paolo, Milano, Medicina III); Moreno Tresoldi, Enrica Bozzolo, Sarah Damanti (IRCCS Ospedale San Raffaele – Milano, Medicina Generale e delle Cure Avanzate); Massimo Porta, Miriam Gino (AOU Città della Salute e della Scienza di Torino – Torino, Medicina Interna 1U).
Pier Mannuccio Mannucci, Alessandro Nobili, Giorgio Sesti, Antonello Pietrangelo, Francesco Perticone, Francesco Violi, Salvatore Corrao, Alessandra Marengoni, Mauro Tettamanti, Luca Pasina, Carlotta Franchi, Carlotta Franchi, Alessio Novella, Mauro Tettamanti, Gabriella Miglio, Mauro Tettamanti, Alessia Antonella Galbussera, Ilaria Ardoino, Alessio Novella, Silvia Cantiero, Domenico Prisco, Elena Silvestri, Giacomo Emmi, Alessandra Bettiol, Irene Mattioli, Matteo Mazzetti, Gianni Biolo, Michela Zanetti, Giacomo Bartelloni, Michele Zaccari, Massimiliano Chiuch, Ilaria Martini, Matteo Pirro, Graziana Lupattelli, Vanessa Bianconi, Riccardo Alcidi, Alessia Giotta, Massimo R. Mannarino, Domenico Girelli, Fabiana Busti, Giacomo Marchi, Mario Barbagallo, Ligia Dominguez, Vincenza Beneduce, Federica Cacioppo, Salvatore Corrao, Giuseppe Natoli, Salvatore Mularo, Massimo Raspanti, Christiano Argano, Federica Cavallaro, Marco Zoli, Maria Laura Matacena, Giuseppe Orio, Eleonora Magnolfi, Giovanni Serafini, Mattia Brunori, Ilaria Lazzari, Angelo Simili, Maria Domenica Cappellini, Giovanna Fabio, Margherita Migone De Amicis, Giacomo De Luca, Natalia Scaramellini, Valeria Di Stefano, Simona Leoni, Sonia Seghezzi, Alessandra Danuto Di Mauro, Diletta Maira, Marta Mancarella, Tiziano Lucchi, Paolo Dionigi Rossi, Marta Clerici, Simona Leoni, Giulia Bonini, Federica Conti, Silvia Prolo, Maddalena Fabrizi, Miriana Martelengo, Giulia Vigani, Paola Nicolini, Antonio Di Sabatino, Emanuela Miceli, Marco Vincenzo Lenti, Martina Pisati, Lavinia Pitotti, Valentina Antoci, Ginevra Cambiè, Lavinia Pitotti, Valentina Antoci, Roberto Pontremoli, Valentina Beccati, Giulia Nobili, 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Conceptualization, ES, AN, AN, GS. methodology, ES, AN, AN, formal analysis, Nov, AN, investigation: ES, FG, FA, AS, FA, AP, GS writing—original draft preparation, ES, GS writing review and editing, ES, AN, AN, FA, AP., GS. All authors have read and agreed to the published version of the manuscript.
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Succurro, E., Novella, A., Nobili, A. et al. Prescription appropriateness of anti-diabetes drugs in elderly patients hospitalized in a clinical setting: evidence from the REPOSI Register. Intern Emerg Med 18, 1049–1063 (2023). https://doi.org/10.1007/s11739-023-03254-3
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DOI: https://doi.org/10.1007/s11739-023-03254-3