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Appears in Collections:Faculty of Health Sciences and Sport Journal Articles
Peer Review Status: Refereed
Title: Association between allopurinol use and hip fracture in older patients
Author(s): Basu, Ujani
Goodbrand, James A
McMurdo, Marion E T
Donnan, Peter T
McGilchrist, Mark M
Frost, Helen
George, Jacob
Witham, Miles D
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Keywords: Gout
Risk factor
Issue Date: Mar-2016
Date Deposited: 20-Jul-2016
Citation: Basu U, Goodbrand JA, McMurdo MET, Donnan PT, McGilchrist MM, Frost H, George J & Witham MD (2016) Association between allopurinol use and hip fracture in older patients. Bone, 84, pp. 189-193.
Abstract: Background  Allopurinol reduces oxidative stress and interacts with purinergic signalling systems important in bone metabolism and muscle function. We assessed whether allopurinol use was associated with a reduced incidence of hip fracture in older people.  Methods  Analysis of prospective, routinely-collected health and social care data on patients undergoing health and social work assessment in a single geographical area over a 12year period. Exposure to allopurinol was derived from linked community prescribing data, and hospitalisation for hip fracture and comorbid disease was derived from linked hospitalisation data. Fine and Gray modelling was used to model time to hip fracture accounting for the competing risk of death, incorporating previous use of allopurinol, cumulative exposure to allopurinol as a time dependent variable, and covariate adjustments.  Results  17,308 patients were alive at the time of first social work assessment without previous hip fracture; the mean age was 73years. 10,171 (59%) were female, and 1155 (8%) had at least one exposure to allopurinol. 618 (3.6%) sustained a hip fracture, and 4226 (24%) died during a mean follow-up of 7.2years. In fully-adjusted analyses, each year of allopurinol exposure conferred a hazard ratio of 1.01 (95% CI 0.99, 1.02; p=0.37) for hip fracture and 1.00 (0.99, 1.01; p=0.47) for death. Previous use of allopurinol conferred a hazard ratio of 0.76 (0.45, 1.26; p=0.28) for hip fracture and 1.13 (0.99, 1.29; p=0.07) for death.  Conclusion  Greater cumulative use of allopurinol was not associated with a reduced risk of hip fracture or death in this cohort.
DOI Link: 10.1016/j.bone.2016.01.003
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