慢性病长期状态问卷的汉化及信效度检验

Development and testing of the reliability and validity of a Chinese version of the Long-Term Conditions Questionnaire

目的:对长期状态问卷(LTCQ)进行汉化,并检验其在我国慢性病患者中的信效度。方法:在征得原作者同意后,按指南要求对LTCQ进行跨文化调试,形成中文版LTCQ,并对浙江大学医学院附属邵逸夫医院、武义县第一人民医院和杭州市拱宸桥街道社区卫生服务中心等三家医疗机构共319例确诊慢性病的患者进行问卷调查。采用项目分析(频数分析法、题总相关法、临界比值法)、信度分析(克龙巴赫α系数)和效度分析[内容效度(专家评分法)和结构效度(探索性因子分析)]对问卷进行评价。结果:中文版LTCQ包括20个条目,克龙巴赫α系数为0.926,重测信度为0.829,折半信度为0.878,其条目内容效度指数为1,量表内容效度指数为1,探索性因子分析提取4个公因子,分别为身体状态与日常生活、心理状态、支持与应对和安全环境,累计方差贡献率为67.244%。讨论:中文版LTCQ信效度良好,可作为评估我国慢性病患者与疾病长期共存状态的工具。

Objective:To develop a Chinese version of the Long‐Term Conditions Questionnaire(LTCQ)and to test its reliability and validity in Chinese patients with chronic diseases.Methods:With the consent of the original authors,a Chinese version of LTCQ was developed according to the cultural adjustment guidelines.A questionnaire survey was conducted on 319 patients with chronic diseases in Sir Run Run Shaw Hospital,Wuyi County First People’s Hospital and Hangzhou Gongchen Bridge Street Health Service Center.The questionnaire was evaluated by item analysis(including frequency analysis,total question correlation method and critical ratio method),reliability analysis(Cronbach’s alpha coefficient)and validity analysis[including content validity(expert scoring method)and structural validity(exploratory factor analysis)].Results:The Chinese version of the LTCQ included 20 entries,with a Cronbach’s alpha coefficient of 0.926,a retest reliability of 0.829,a split-half reliability of 0.878,an entry content validity index of 1,and a content validity index at the questionnaire level of 1.Four common factors were extracted by exploratory factor analysis,namely physical state and daily life,psychological state,support and coping,and safe environment,with a cumulative variance contribution rate of 67.244%.Discussion:The Chinese version of the LTCQ developed in this study has good reliability and validity and it may be used to assess the long-term conditions of patients with chronic diseases in China.