HEBREW TRANSLATION AND VALIDATION OF THE CATQUEST- 9SF QUESTIONNAIRE

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Aims: The purpose of this study is to translate and validate a Hebrew version of the Catquest-9SF questionnaire, an efficient patient-reported outcome measure (PROM), for the assessment of cataract surgery outcome Methods: This is a prospective questionnaire validation study. The Catquest-9SFquestionnaire was translated from English to Hebrew following a standard procedure. The study population included candidates for cataract extraction surgery in both eyes. They were 21 years of age or older, Hebrew-speaking, and had Internet access. They completed the questionnaire in 2 stages, once before the surgery on the first eye and again 4-6 weeks following the surgery on the second eye. A Rasch analysis was performed to validate the Hebrew version of the questionnaire, and a sensitivity analysis was performed for the patients who completed both the preoperative and postoperative questionnaire. Results: Of the 133 patients included in the study, 125 completed the first questionnaire, and 24 also completed the second questionnaire by the time of study closure. The Hebrew translation of Catquest-9SF demonstrated 1-dimensionality, ordered response categories and good person separation. The sensitivity analysis on the 24 paired Catquest-9SF questionnaires showed good effect size (1.85). Conclusions: The Hebrew versions of the Catquest-9SF questionnaire is valid and reliable with psychometric properties of good quality and good effect size. It is applicable to Hebrew-speaking cataract patients for clinical assessment and research purposes