Abstract
Summary
Using national insurance claims data of Taiwan, we found that patients with peripheral arterial disease (PAD) had increased risk of fracture during the follow-up period of 2000–2013. History of PAD was also associated with adverse outcomes in hospitalized fracture patients. Prevention strategies were needed in this susceptible population.
Introduction
Limited information was available on the association between PAD and fracture. The purpose of this study is to evaluate fracture risk and post-fracture outcomes in patients with PAD.
Methods
We identified 6647 adults aged ≥ 20 years with newly diagnosed PAD using the Taiwan National Health Insurance Research Database in 2000–2004. Comparison cohort consisted of 26,588 adults without PAD randomly selected with frequency matching in age and sex. Events of fracture were identified during the follow-up period from January 1, 2000 until December 31, 2013, to evaluate adjusted hazard ratios (HR) and 95% confidence interval (CI) of fracture associated with PAD. Another nested cohort study of 799,463 hospitalized fracture patients analyzed adjusted odds ratios (ORs) and 95% CIs of adverse events after fracture among patients with and without PAD in 2004–2013.
Results
Incidences of fracture in people with and without PAD were 22.1 and 15.5 per 1000 person-years, respectively (P < .0001). Compared with control, the adjusted HR of fracture was 1.59 (95% CI, 1.48–1.69) for PAD patients. In the nested cohort study, patients with PAD had higher post-fracture mortality (OR = 1.16; 95% CI, 1.09–1.25) and various complications. PAD patients also had comparatively higher medical expenditure (2691 vs. 2232 USD, P < .0001) and longer hospital stay (10.6 vs. 9.0 days, P < 0.0001) during fracture admission.
Conclusions
Increased risk of fracture and post-fracture adverse outcomes were associated with PAD. This susceptible population needs care to prevent fracture and to minimize adverse outcomes after it occurs.
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Abbreviations
- ICD-9-CM:
-
International Classification of Diseases, 9th Revision, Clinical Modification
- CI:
-
Confidence interval
- HR:
-
Hazard ratio
- OR:
-
Odds ratio
- PAD:
-
Peripheral arterial disease
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Acknowledgements
This study is based in part on data obtained from the National Health Insurance Research Database. This database is provided by the National Health Insurance Administration of Taiwan’s Ministry of Health and Welfare and is managed by the National Health Research Institutes. The authors’ interpretations and conclusions do not represent those of the aforementioned agencies.
Funding Information
This study was supported in part by grants from Taiwan’s Ministry of Science and Technology (MOST105-2629-B-038-001, MOST105-2221-E-038-014, MOST105-2314-B-038-025, MOST104-2314-B-038-027-MY2, NSC102-2314-B-038-021-MY3), Shuang Ho Hospital, Taipei Medical University (104TMU-SHH-23), and Taiwan’s Ministry of Health and Welfare Clinical Trial and Research Center of Excellence (MOHW106-TDUB-212-113004)
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Feng-Lin Liu, Chao-Shun Lin, Chun-Chieh Yeh, Chun-Chuan Shih, Yih-Giun Cherng, Chih-Hsing Wu, Ta-Liang Chen, and Chien-Chang Liao declare that they have no conflict of interest.
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Liu, FL., Lin, CS., Yeh, CC. et al. Risk and outcomes of fracture in peripheral arterial disease patients: two nationwide cohort studies. Osteoporos Int 28, 3123–3133 (2017). https://doi.org/10.1007/s00198-017-4192-z
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DOI: https://doi.org/10.1007/s00198-017-4192-z