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    Who repeats more laboratory tests inappropriately? Surgeons versus physicians
    (IOS Press BV, 2021) Kılınçarslan, Mehmet Göktuğ; Şahi̇n, Erkan Melih
    BACKGROUND: Inappropriate repeat testing is an objectively measurable type of health service overutilization which may harm patients. OBJECTIVE: To evaluate both the frequency and cost of inappropriate repeat testing in a tertiary hospital in terms of specialties. METHODS: This cross-sectional study was conducted in a tertiary hospital. Laboratory results of 26 tests ordered between 1 July 2014 and 30 June 2017 were evaluated retrospectively. Test that were repeated earlier than the minimum re-Test interval were accepted as inappropriate repeat testing. After analyzing the descriptive statistics, the cluster analysis method was used to determine whether groups were formed within specialties. RESULTS: Specialties form two clusters were found: The first cluster included specialties mostly from surgical science and the second cluster included specialties mostly from medical science. It was found that the cluster that includes mostly surgical specialties repeats laboratory tests at a higher rate but causes a waste of less resources, whereas the cluster that includes mostly medical specialties repeats laboratory tests at a lower rate but causes a waste of more resources due to a higher volume of test orders. CONCLUSION: Due to the high rates of inappropriate repeat testing, surgical specialties seem to be the first target of intervention strategies, but medical specialties, which account for a higher volume of inappropriate repeat testing and higher unnecessary cost, should be the primary target of intervention strategies.