The Catquest-9SF questionnaire is a patient reported outcome measure that quantifies the visual benefits from cataract surgery. The purpose of this study was to translate and adapt the Catquest-9SF questionnaire for France, to assess its psychometric properties via Rasch analysis, and to assess its validity when completed using an electronic notepad. The Catquest-9SF questionnaire was translated following the guidelines of the International Society for Pharmacoeconomics and Outcomes Research. Catquest-9SF and clinical data were collected from patients before and after routine cataract surgery. All questionnaire data were collected via an electronic notepad. Rasch analysis was performed to assess psychometric properties, and sensitivity to change was analysed for patients with complete paired pre- and post-operative questionnaires. A complete filled-in preoperative questionnaire was obtained for 848 patients. Rasch analysis showed good precision (person separation: 2.32, person reliability: 0.84), ordered category probability curves, no item misfit, and unidimensionality. The respondents were slightly more able than the level of item difficulty (targeting: −1.12 logits). Sensitivity was analysed on 211 paired questionnaires, and the postoperative questionnaires showed a clear ceiling effect. The effect size was 2.6. The use of an electronic notepad for completing the questionnaire worked out very well after some adjustments. The French version of Catquest-9SF has good psychometric properties and is suitable for use in French-speaking patients. The use of the Catquest-9SF questionnaire in an electronic format showed good validity.

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法文版Catquest-9SF的有效性以及使用电子记事本输入患者报告的结局指标

Catquest-9SF调查表是一项患者报告的结局指标，可量化白内障手术的视觉效果。这项研究的目的是为法国翻译和改编Catquest-9SF调查表，通过Rasch分析评估其心理测量特性，并在使用电子记事本完成后评估其有效性。根据国际药物经济学和结果研究学会的指南翻译了Catquest-9SF调查表。在常规白内障手术之前和之后，从患者中收集Catquest-9SF和临床数据。所有问卷数据均通过电子记事本收集。进行了Rasch分析以评估心理计量学特征，并使用完整的术前和术后配对问卷对患者的变化敏感性进行了分析。获得了848例患者的完整填写的术前问卷。Rasch分析显示出良好的精度（人员分离：2.32，人员可靠性：0.84），有序的类别概率曲线，无项目不匹配和一维性。受访者的能力比项目难易程度强一点（定位：-1.12 logits）。对211份配对问卷进行了敏感性分析，术后问卷显示出明显的上限效应。效果大小为2.6。经过一些调整后，使用电子记事本填写问卷非常有效。法语版本的Catquest-9SF具有良好的心理测验特性，适合用于说法语的患者。以电子格式使用Catquest-9SF问卷显示出良好的有效性。