简体中文版King健康问卷在膀胱过度活动症患者中应用的信度和效度分析

目的 评价简体中文版King健康问卷(KHQ)在膀胱过度活动症(OAB)患者中应用的信度和效度.方法 采用"WHO-QOL跨文化生活质量研究问卷翻译法"将英文版KHQ翻译成简体中文,随机抽取就诊于泌尿外科门诊的OAB患者,在第0周和第2周对其进行2次简体中文版KHQ问卷调查.通过Cronbach's α系数评价问卷的内部一致性;用组内相关系数(ICC)评价重测信度;计算各问题得分与所属领域得分的Spearman等级相关系数(rs)评价内容效度;用因子分析评价结构效度.结果 48例符合纳入标准的OAB患者参与本研究,40例完成2次调查,男7例,女33例,年龄(49.6±14.3)岁.KHQ各亚量表和各领域均具有较好的内部一致性(Cronbach's α:0.7l8～0.924)、中到高的重测信度(ICC:0.567～0.995,P<0.01)以及中到高的内容效度(r:0.462～0.964,P<0.01).因子分析法显示简体中文版KHQ具有可接受的结构效度.结论简体中文版KHQ具有较好的信度和效度,可作为评估OAB患者生活质量的专用量表.

Reliability and validity of the Chinese version of the King health questionnaire in patients with overactive bladder

Objective To evaluate the reliability and validity of the Chinese version of the King's Health Questionnaire (KHQ) in patients with overactive bladder(OAB).Methods The original English KHQ was translated into Chinese and linguistically validated following the Cross-cultural adaptation of health-related quality of life measures. Patients recruited randomly from urology clinics were scheduled for two visits with 2 weeks apart, and they were surveyed through the Chinese version of the KHQ. Internal consistency reliability was assessed by Cronbach's α test;Test-retest reliability was examined among stable patients using Intraclass correlation coefficient (ICC) and Spearman's rank correlation statistical analyses. Content validity was estimated by Spearman's rank correlation statistical analyses. A factor analysis was conducted to validate the underlying factor structure of the Chinese version of the KHQ. Results A total of 48 OAB patients who met the criteria participated the study, and 40 patients (7 men, 33 women) completed the questionnaires twice. All the subscales and domains of the KHQ showed high levels of internal consistency (Cronbach's a: 0.718-0. 924) , moderate to excellent test-retest reliability (ICC:0.551-0.923,P<0.01) and acceptable construct validity. The content validity was moderate to excellent except for the Social Limitations domain. Conclusion Psychometric testing supports the reliability and validity of the Chinese version of the KHQ as an OAB-specific measure of HR QOL.