Journal article

Validation of Catquest-9SF Questionnaire in a Chinese Cataract Population

Xianchai Lin, Mingge Li, Mei Wang, Yajing Zuo, Siping Zhu, Yongxin Zheng, Xiaofeng Lin, Minbin Yu, Ecosse L Lamoureux

PLoS One | PUBLIC LIBRARY SCIENCE | Published : 2014

Abstract

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 partic..

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Grants

Awarded by National Natural Science Foundation of China


Funding Acknowledgements

Dr. Lin Xianchai is funded by National Natural Science Foundation of China 81200685. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.