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• W2950932728 abstract "There is widespread variation in testing practice among practitioners, however there has been no objective way to pinpoint target tests for utilization management. We propose to take advantage of inter-physician variance in clinical practice as a quantitative measure to generate lists of potentially misutilized tests.Testing frequencies from a database of clinical testing volumes for outpatients in Calgary, Canada, were obtained for the study period of 2016. For each chemistry, microbiology or hematology test, an arithmetic coefficient of variation (CV) was calculated from family physicians' ordering frequencies.The mean CV for all 358 tests considered was 219% (95% CI 206-231%) with a range of 52-729%. The highest variance was observed for human T-lymphotropic virus antibody testing and several tests for heavy metal levels (mercury, copper, zinc and chromium). Among the 100 most commonly run tests, high variance was found for several endocrinology tests including cortisol.The utility of ranking clinical tests by ordering variance presents a practical approach to evaluate relative variation in physician practice strategy and to identify potential areas of misutilization." @default.
• W2950932728 created "2019-06-27" @default.
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• W2950932728 date "2019-10-01" @default.
• W2950932728 modified "2023-10-16" @default.
• W2950932728 title "Evaluating practice variance among family physicians to identify targets for laboratory utilization management" @default.
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• W2950932728 doi "https://doi.org/10.1016/j.cca.2019.06.017" @default.
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