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  • Title: Appropriateness of NSAID and Coxib prescribing for patients with osteoarthritis by primary care physicians in Ontario: results from the CANOAR study.
    Author: Sebaldt RJ, Petrie A, Goldsmith CH, Marentette MA.
    Journal: Am J Manag Care; 2004 Nov; 10(11 Pt 1):742-50. PubMed ID: 15623264.
    Abstract:
    OBJECTIVE: To assess the appropriateness of nonsteroidal anti-inflammatory drug (NSAID) use relative to recent osteoarthritis treatment guidelines from the Second Canadian Consensus Conference. STUDY DESIGN: Observational study of self-reported practice in a cohort of physicians from the Canadian Osteoarthritis Rx (CANOAR) study. SUBJECTS AND METHODS: Ontario primary care physicians were recruited from the top 10% of NSAID prescribers based on the number of NSAID prescriptions filled per year. Physicians were asked to record office visits on a 1-page data collection form from November 2000 to December 2001. RESULTS: Of 1400 physicians invited, 185 were enrolled and 119 registered office visits. Data were analyzed for the first visits of 5459 patients for whom a prescribed NSAID was identified, of whom 60% were female and 46% were older than 65 years. Coxibs were prescribed for 56% of study patients and were more commonly used by those with recent gastrointestinal (GI) events (85%), those receiving warfarin sodium therapy (79%), and those with congestive heart failure (68%). Coxib use increased with increasing global assessment of OA severity, but not patient age. Overall, 58% of prescriptions were considered appropriate given patient GI risk factors. CONCLUSIONS: Most coxib and NSAID prescriptions were consistent with the guidelines, but there was considerable underuse of coxibs in at-risk patients and some overuse of coxibs and of gastroprotective agents with NSAIDs in patients with no identified GI risk factors. Increased recognition of relationships between patient age and NSAID-related GI risk would likely promote more appropriate use of traditional NSAIDs, coxibs, and gastroprotective agents in osteoarthritis patients.
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