Validation of Catquest-9SF questionnaire in a Chinese cataract population.
Validation of Catquest-9SF questionnaire in a Chinese cataract population.
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Catquest-9SF 问卷在中国白内障人群中的验证
DOI：
10.1371/journal.pone.0103860
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发表时间：
2014
期刊：
影响因子：
3.7
通讯作者：
Lamoureux EL
中科院分区：
文献类型：
--
作者：
Lin X;Li M;Wang M;Zuo Y;Zhu S;Zheng Y;Lin X;Yu M;Lamoureux EL
目的编制中文版Catquest-9 SF问卷并在白内障人群中进行验证。方法采用Catquest-9 SF问卷进行翻译和回译。在三级眼科医院招募术前患者，记录他们的人口统计学信息和视力。Catquest-9 SF的心理测量学特性，包括有序阈值，区分不同层次的人的能力，不存在不匹配的项目，一维性，差异项目功能（DIF）和结构效度进行了测试，使用Rasch分析。结果共纳入102例患者，有效率100%。参与者的平均年龄为70.2岁（SD = 12.1），46.9%为女性。 Rasch分析表明，这一版本的问卷有有序的回答阈值，没有DIF。这些项目适合一个单一的整体结构和一维的残差的主成分分析。视力受损患者在Catquest-9 SF上的Rasch评分显著较差（与非视力受损患者相比，平均变化为-2.5，p=0.035）。 结论Catquest-9 SF中文版是一种有效、可靠的评估中国白内障患者视力残疾结局的问卷，可推荐临床常规使用。
Purpose To develop and validate a Chinese version of the Catquest-9SF questionnaire in a cataract population. Methods The Catquest-9SF Questionnaire was translated and back translated into Chinese. Preoperative patients were recruited at a tertiary eye hospital and their demographic information and visual acuity were documented. Psychometric properties of the Catquest-9SF, including ordered thresholds, the ability to distinguish between different strata of person ability, absence of misfitting items, unidimentionality, differential item functioning (DIF) and construct validity were tested, using Rasch analysis. Results A total of 102 patients (100% response rate) were enrolled. The participants'mean age was 70.2 year (SD = 12.1) and 46.9% were female. Rasch analysis showed that this version of the questionnaire had ordered response thresholds and was free of DIF. The items fit a single overall construct and unidimensional by principal components analysis of the residuals. Patients with visual impairment had significantly poorer Rasch scores on the Catquest-9SF (mean change, -2.5, p = 0.035, compared with non-visually impaired patients). Conclusion The Chinese version of Catquest-9SF is a valid and reliable questionnaire for assessing the visual disability outcomes of Chinese patients with cataract, and it may be recommended for routine clinical use.
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