Abstract
Background
Medications with anticholinergic effects are commonly used in nursing homes, and their cumulative effect is of particular concern for the risk of adverse effects on cognition.
Objective
The relation between cognitive function and anticholinergic burden measured with four scales, the Anticholinergic Cognitive Burden (ACB) Scale, the Anticholinergic Risk Scale, the German Anticholinergic Burden Scale, and the CRIDECO Anticholinergic Load Scale, is assessed according to the hypothesis that a higher anticholinergic burden is associated with reduced cognitive performance.
Methods
This retrospective cross-sectional multicenter study was conducted in a sample of Italian long-term-care nursing homes (NH). Sociodemographic details, diagnosis, and drug treatments of each NH resident were collected using medical records four times during 2018 and 2019. Cognitive status was rated with the Mini-Mental State Examination (MMSE). The prevalence of anticholinergic use and its burden were calculated referring to the last time point for each patient. A longitudinal analysis was done on NH residents with at least two MMSE between 2018 and 2019 to assess the relation between the anticholinergic load and decline in MMSE.
The relationship between drug-related anticholinergic burden and cognitive performance was analyzed using Poisson regression model theory. Multivariate analyses were adjusted according to the known risk factors of reduced cognitive performance available [age, sex, history of stroke or transient ischemic attack (TIA), and number of non-anticholinergic drugs] and for cholinesterase inhibitors. In view of the high number of subjects with an MMSE score = 0 among residents with dementia, for this group a zero-inflated Poisson regression model was used to give more consistent results. The association of anticholinergic burden with mortality was examined from each patient’s last visit using a multivariate logistic model adjusted for age, sex, and Charlson Comorbidity Index (CCI).
Results
Among 1412 residents recruited, a clear direct relationship was found between higher anticholinergic burden and cognitive impairment only for the Anticholinergic Cognitive Burden Scale. Residents taking an anticholinergic who scored 5 or more had 2.5 points more decline than those not taking them (p < 0.001). Among residents without dementia there was a trend toward direct relationship for the Anticholinergic Cognitive Burden Scale and the Anticholinergic Risk Scale. Residents with higher scores had about 2 points more decline than residents not taking anticholinergic drugs. No relation was found between anticholinergic burden and cognitive decline or mortality.
Conclusions
The cumulative effect of medications with modest antimuscarinic activity may influence the cognitive performance of NH residents. The anticholinergic burden measured with the ACB scale should help identify NH residents who may benefit from reducing the anticholinergic burden.
A clear direct relationship between anticholinergic burden and cognitive impairment was found only for the ACB Scale.
Similar content being viewed by others
References
Kersten H, Wyller TB. Anticholinergic drug burden in older people’s brain—how well is it measured? Basic Clin Pharmacol Toxicol. 2014;114:151–9.
Salahudeen MS, Duffull SB, Nishtala PS. Anticholinergic burden quantified by anticholinergic risk scales and adverse outcomes in older people: a systematic review. BMC Geriatr. 2015;15:31.
Cardwell K, Hughes CM, Ryan C. The association between anticholinergic medication burden and health related outcomes in the “oldest old”: a systematic review of the literature. Drugs Aging. 2015;32:835–48.
Welsh TJ, van der Wardt V, Ojo G, Gordon AL, Gladman JRF. Anticholinergic drug burden tools/scales and adverse outcomes in different clinical settings: a systematic review of reviews. Drugs Aging. 2018;35:523–38.
Fox C, Smith T, Maidment I, Chan W-Y, Bua N, Myint PK, et al. Effect of medications with anti-cholinergic properties on cognitive function, delirium, physical function and mortality: a systematic review. Age Ageing. 2014;43:604–15.
Egberts A, Moreno-Gonzalez R, Alan H, Ziere G, Mattace-Raso FUS. Anticholinergic drug burden and delirium: a systematic review. J Am Med Dir Assoc. 2021;22:65-73.e4.
Abrams P, Andersson K-E, Buccafusco JJ, Chapple C, de Groat WC, Fryer AD, et al. Muscarinic receptors: their distribution and function in body systems, and the implications for treating overactive bladder. Br J Pharmacol. 2006;148:565–78.
Salahudeen MS, Chyou T-Y, Nishtala PS. Serum anticholinergic activity and cognitive and functional adverse outcomes in older people: a systematic review and meta-analysis of the literature. PLoS ONE. 2016;11: e0151084.
Lisibach A, Benelli V, Ceppi MG, Waldner-Knogler K, Csajka C, Lutters M. Quality of anticholinergic burden scales and their impact on clinical outcomes: a systematic review. Eur J Clin Pharmacol. 2021;77:147–62.
Brombo G, Bianchi L, Maietti E, Malacarne F, Corsonello A, Cherubini A, et al. Association of anticholinergic drug burden with cognitive and functional decline over time in older inpatients: results from the CRIME Project. Drugs Aging. 2018;35:917–24.
Durán CE, Azermai M, Vander Stichele RH. Systematic review of anticholinergic risk scales in older adults. Eur J Clin Pharmacol. 2013;69:1485–96.
Avorn J, Gurwitz JH. Drug use in the nursing home. Ann Intern Med. 1995;123:195–204.
Pasina L, Novella A, Cortesi L, Nobili A, Tettamanti M, Ianes A. Drug prescriptions in nursing home residents: an Italian multicenter observational study. Eur J Clin Pharmacol. 2020;76:1011–9.
Landi F, Dell’Aquila G, Collamati A, Martone AM, Zuliani G, Gasperini B, et al. Anticholinergic drug use and negative outcomes among the frail elderly population living in a nursing home. J Am Med Dir Assoc. 2014;15:825–9.
Boustani M, Campbell N, Munger S, Maidment I, Fox C. Impact of anticholinergics on the aging brain: a review and practical application. Aging Health. 2008;4:311–20.
Rudolph JL, Salow MJ, Angelini MC, McGlinchey RE. The anticholinergic risk scale and anticholinergic adverse effects in older persons. Arch Intern Med. 2008;168:508–13.
Kiesel EK, Hopf YM, Drey M. An anticholinergic burden score for German prescribers: score development. BMC Geriatr. 2018;18:239.
Ramos H, Moreno L, Pérez-Tur J, Cháfer-Pericás C, García-Lluch G, Pardo J. CRIDECO Anticholinergic load scale: an updated anticholinergic burden scale. Comparison with the ACB scale in spanish individuals with subjective memory complaints. J Pers Med. 2022;12:207.
Masnoon N, Shakib S, Kalisch-Ellett L, Caughey GE. Tools for assessment of the appropriateness of prescribing and association with patient-related outcomes: a systematic review. Drugs Aging. 2018;35:43–60.
Ghibelli S, Marengoni A, Djade CD, Nobili A, Tettamanti M, Franchi C, et al. Prevention of inappropriate prescribing in hospitalized older patients using a computerized prescription support system (INTERcheck®). Drugs Aging. 2013;30:821–8.
Pasina L, Marengoni A, Ghibelli S, Suardi F, Djade CD, Nobili A, et al. A multicomponent intervention to optimize psychotropic drug prescription in elderly nursing home residents: an Italian multicenter, prospective, pilot study. Drugs Aging. 2016;33:143–9.
Morris JC, Edland S, Clark C, Galasko D, Koss E, Mohs R, et al. The consortium to establish a registry for Alzheimer’s disease (CERAD). Part IV. Rates of cognitive change in the longitudinal assessment of probable Alzheimer’s disease. Neurology. 1993;43:2457–65.
Teramura-Grönblad M, Raivio M, Savikko N, Muurinen S, Soini H, Suominen M, et al. Potentially severe drug-drug interactions among older people and associations in assisted living facilities in Finland: a cross-sectional study. Scand J Prim Health Care. 2016;34:250–7.
Hsu W-H, Wen Y-W, Chen L-K, Hsiao F-Y. Comparative associations between measures of anti-cholinergic burden and adverse clinical outcomes. Ann Fam Med. 2017;15:561–9.
Ali S, Peterson GM, Bereznicki LR, Salahudeen MS. Association between anticholinergic drug burden and mortality in older people: a systematic review. Eur J Clin Pharmacol. 2020;76:319–35.
Patnode CD, Perdue LA, Rossom RC, Rushkin MC, Redmond N, Thomas RG, et al. Screening for cognitive impairment in older adults: an evidence update for the U.S. Preventive Services Task Force [Internet]. Rockville (MD): Agency for Healthcare Research and Quality (US); 2020 [cited 2023 Jun 7]. http://www.ncbi.nlm.nih.gov/books/NBK554654/. Accessed 23 Aug 2023.
Fox C, Richardson K, Maidment ID, Savva GM, Matthews FE, Smithard D, et al. Anticholinergic medication use and cognitive impairment in the older population: the medical research council cognitive function and ageing study. J Am Geriatr Soc. 2011;59:1477–83.
Pasina L, Lucca U, Tettamanti M. Relation between anticholinergic burden and cognitive impairment: results from the Monzino 80-plus population-based study. Pharmacoepidemiol Drug Saf. 2020;29:1696–702.
Pasina L, Colzani L, Cortesi L, Tettamanti M, Zambon A, Nobili A, et al. Relation between delirium and anticholinergic drug burden in a cohort of hospitalized older patients: an observational study. Drugs Aging. 2019;36:85–91.
Pasina L, Djade CD, Lucca U, Nobili A, Tettamanti M, Franchi C, et al. Association of anticholinergic burden with cognitive and functional status in a cohort of hospitalized elderly: comparison of the anticholinergic cognitive burden scale and anticholinergic risk scale: results from the REPOSI study. Drugs Aging. 2013;30:103–12.
Pasina L, Rizzi B, Nobili A, Recchia A. Anticholinergic load and delirium in end-of-life patients. Eur J Clin Pharmacol. 2021;77:1419–24.
Kua C-H, Mak VSL, Huey Lee SW. Health outcomes of deprescribing interventions among older residents in nursing homes: a systematic review and meta-analysis. J Am Med Dir Assoc. 2019;20:362-372.e11.
Ailabouni N, Mangin D, Nishtala PS. DEFEAT-polypharmacy: deprescribing anticholinergic and sedative medicines feasibility trial in residential aged care facilities. Int J Clin Pharm. 2019;41:167–78.
Hilmer SN, Mager DE, Simonsick EM, Cao Y, Ling SM, Windham BG, et al. A drug burden index to define the functional burden of medications in older people. Arch Intern Med. 2007;167:781–7.
Hilmer SN. Calculating and using the drug burden index score in research and practice. Expert Rev Clin Pharmacol. 2018;11:1053–5.
Acknowledgments
The authors are very grateful to Korian Italy for the possibility of analyzing data of their NH residents. Korian Italy had no role in the conception and design of the study, data analysis and interpretation, the preparation and writing of the report, or the decision to submit the manuscript for publication. We are grateful to J.D. Baggott for language editing.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Funding
No sources of funding were used in the conducting of this study or the preparation of this article.
Conflicts of Interest
The authors have no conflicts of interest that are directly relevant to the content of this manuscript.
Ethics Approval
Data collection complied fully with Italian law on personal data protection, and the study was approved by the ethics committee of the IRCCS Carlo Besta Foundation.
Consent to Participate
All data were anonymous, and informed consent was not required for the purpose of this study.
Consent for Publication
Not applicable.
Data Availability Statement
The data are not publicly available due to privacy or ethical restrictions. Data will be made available on request.
Code Availability
The code that supports the findings of this study is available on request from the corresponding author.
Authors’ Individual Contributions
All authors participated in drafting the manuscript or critical revision of the manuscript for important intellectual content and provided approval of the final submitted version. Individual contributions are as follows: LP and AN designed the study, interpreted data, and wrote the manuscript; CE carried out and interpreted statistical analyses; AI made the final critical revision for important intellectual content.
Supplementary Information
Below is the link to the electronic supplementary material.
Rights and permissions
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
About this article
Cite this article
Novella, A., Elli, C., Ianes, A. et al. Anticholinergic Burden and Cognitive Impairment in Nursing Homes: A Comparison of Four Anticholinergic Scales. Drugs Aging 40, 1017–1026 (2023). https://doi.org/10.1007/s40266-023-01058-w
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s40266-023-01058-w