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Cat quest sell items7/3/2023 ![]() ![]() Previous studies have mainly focused on the validation of cataract surgery candidates in a hospital setting, but a questionnaire valid in a hospital setting serves only as an indirect evidence it is also valid community screening. On the other hand, the aim of the study was also to find the direct evidence that the Catquest-9SF would be used as a routine clinical tool in community screening. On the one hand, the results of Chinese Catquest-9SF is still controversial, one study claimed that all nine questions of Chinese Catquest-9SF are valid and reliable, while the other study suggested that it is better remove item 7, for item 7 is misfitting. However, unsolved problems issues arise on the Chinese Catquest-9SF. Recently, this questionnaire has been assessed by using Rasch analysis in Chinese populations. Ĭurrently, Catquest-9SF has been translated and culturally adapted, as well as validated, in Australia, Germany and Austria, Italy, and the Netherlands, among other countries. However, its nine-item short-form Rasch-scaled version (Catquest-9SF) was shown to be more reliable and valid in measuring the visual disability outcomes of cataract surgery. Originally, Catquest-9SF contained 19 questions, was available in Swedish and was used by the National Swedish Cataract Register to evaluate the visual disability of cataract patients. Catquest-9SF has been adopted by the International Consortium for Health Outcomes Measurement (ICHOM) to specifically measure the risk factors for and outcomes of cataracts, which are the main global cause of blindness and vision impairment. ![]() There are many vision-related functional questionnaires, such as Visual Functioning 14 (VF-14), NEI-visual functioning questionnaire 25 (NEI-VFQ 25) and Catquest nine-item short-form (Catquest-9SF). The major representative of formal PROs is reliable and validated multi-item questionnaires. Patient-reported outcomes (PROs), together with Clinician-reported outcomes (CROs) and laboratory tests (or device measurements) are three types of endpoints of diseases. Thus, this questionnaire may be expected to be an auxiliary tool for preliminary cataract screening use. The Chinese version of Catquest-9SF is a valid and reliable questionnaire in community screenings. There was a fair but statistically significant correlation between Catquest-9SF (Q6, Q7, and Q8) and LOCS III scores and a moderate correlation between Q4 in Catquest-9SF and subcapsular components for the better eye ( r = − 0.546, p < 0.001). The Catquest-9SF questionnaire demonstrated ordered response categories and unidimensionality (item fit statistics range: 0.70–1.35) the PSI and PR of the category probability curves were 2.00 and 0.80, respectively. Rasch analysis was used to assess its psychometric properties, and Spearman correlation coefficient was employed to determine the correlation between Catquest-9SF scores and LOCS III cataract grading. The Catquest-9SF questionnaire was translated into Chinese and was completed by 104 Chinese cataract patients who were diagnosed in community screening. ![]() This was a prospective questionnaire validation study. The purpose of this study was to validate the Chinese Catquest-9SF questionnaire in community screenings and explore the correlation between Catquest-9SF scores and Lens Opacities Classification System (LOCS) III cataract grading. ![]()
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