Abstract
AimsOtosclerosis can severely impact quality of life, but no questionnaire is available in French. The present study aimed to adapt and validate a French version of the SPOT-25. Materials and methodsA controlled prospective study was conducted between September 2021 and April 2022. The translation used the “forward-backward” technique and statistical validation was performed in non-operated adult otosclerosis patients (cases) and a control group. Assessment Internal consistency, discrimination performance and test-retest reliability were assessed on global score, subscores and items. ResultsFifty-one cases and 58 control subjects filled out the test questionnaire and 35 of the 51 cases, also filled out the retest. Internal consistency on Cronbach alpha was 0.95 for the cases. Median total SPOT-25 score was 44 (range, 10–78) for cases and 2 (range, 0–33) for controls (p= P<0.0001). Test-retest reliability on intraclass correlation coefficient was excellent (ICC=0.92; [95% CI, 0.84–0.96]). Individual items all showed satisfactory performance. ConclusionThe French version of SPOT-25 was short and easy to use, with satisfactory performance in assessing quality of life in otosclerosis patients.
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