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Published Online First: 29 August 2007. doi:10.1136/ard.2007.076182
Annals of the Rheumatic Diseases 2008;67:609-613
Copyright © 2008 BMJ Publishing Group Ltd & European League Against Rheumatism.

EXTENDED REPORTS

Uric acid lowering therapy: prescribing patterns in a large cohort of older adults

D H Solomon, J Avorn, R Levin, M A Brookhart

Division of Pharmacoepidemiology, Division of Rheumatology, Brigham and Women’s Hospital, Boston, Massachusetts, USA

D H Solomon, Division of Pharmacoepidemiology, 1620 Tremont Street, Suite 3030, Boston MA 02120, USA; dhsolomon{at}partners.org

Background: Uric acid lowering therapy (UALT) is considered a chronic treatment for gout. Relatively little is known about adherence to UALT.

Methods: We assessed adherence with UALT over a 1-year study period among 9823 older adults enrolled in a pharmacy benefit program. Two adherence measures were calculated, the percentage of days covered (PDC) and the time until an extended break (at least 60 days) in treatment. A PDC <80% was considered poor adherence and its predictors were examined in multivariable logistic models.

Results: The mean (SD) PDC was 54% (36%) with 64% of patients considered poorly compliant over the study period. A total of 56% had experienced an extended break in UALT. Predictors of poor adherence included younger age (odds ratio (OR) 1.50, 95% CI 1.33–1.69 for ages 65–74 compared with 85 and above) and African–American race (OR 1.86, 95% CI 1.52–2.27 compared with Caucasian race). Most patients (93%) received their initial UALT prescription from a non-specialist and this also predicted poor adherence (OR 1.15, 95% CI 0.96–1.38 compared with rheumatologists or nephrologists).

Conclusion: Adherence with UALT is poor. While uric acid levels were not measured in this study, poor adherence with UALT is likely to reduce attainment of goal uric acid levels.


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This article has been cited by other articles:

  • Rider, T. G., Jordan, K. M. (2009). The modern management of gout. Rheumatology (Oxford) 0: kep306v1-kep306 [Abstract] [Full Text]  
  • Singh, J A, Hodges, J S, Asch, S M (2009). Opportunities for improving medication use and monitoring in gout. Ann Rheum Dis 68: 1265-1270 [Abstract] [Full Text]  

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