目的 编制再生障碍性贫血患者生存质量量表(Quality of Life Scale for Patients with Aplastic Anemia,QLS-AA)并评价其信效度.方法 以生存质量概念范畴和生存质量量表四维模式为指导,通过文献回顾和质性访谈初步构建量表条目池,经专家函询、认知性访谈及专家论证形成量表初稿.采用便利抽样法,于2021年12月—2022年11月选取在浙江省某三级甲等综合医院和天津市某三级甲等血液病医院就诊的429例再生障碍性贫血患者进行问卷调查,对量表进行项目分析及信效度检验.结果 回收有效问卷422份,有效问卷回收率为98.37%.探索性因子分析共提取3个公因子,累计方差贡献率为66.113%.量表水平的全体一致性内容效度指数为0.821,平均内容效度指数为0.970,条目水平的内容效度指数为0.833~1.000,与简明健康调查量表得分的相关系数为0.719.量表总的Cronbach's α系数为0.944,分半信度系数为0.882,重测信度系数为0.931.最终形成的QLS-AA包括3个维度、39个条目.结论 QLS-AA的编制过程科学、规范,量表具有良好的信效度,可有效评估再生障碍性贫血患者的生存质量.
Objective To develop the Quality of Life Scale for Patients with Aplastic Anemia(QLS-AA)and to test its reliability and validity.Methods According to the concept category and the four-dimensional model of quality of life,the scale item pool was initially constructed through literature review and qualitative interview.The draft of the QLS-AA was formed through expert inquiry,cognitive interviews and expert consultation.A questionnaire survey was conducted on 429 patients with aplastic anemia from the hematology departments of a tertiary general hospital in Zhejiang Province and a tertiary hematology hospital in Tianjin with the convenient sampling method from December 2021 to November 2022,and the item analysis and reliability,validity test of the pre-test scale were carried out.Results 422 valid questionnaires were collected,and the effective questionnaire recovery rate was 98.37%.3 common factors were extracted by exploratory factor analysis,and the cumulative variance contribution rate was 66.113%.The scale level consensus content validity index was 0.821,the scale level average content validity index was 0.970,the item level content validity index was 0.833~1.000,and the correlation coefficient with SF-36 was 0.719.The Cronbach's α was 0.944,and the split half reliability was 0.882,and retest reliability was 0.931.The final QLS-AA includes 3 dimensions with 39 items.Conclusion The process of developing QLS-AA in this study is scientifically standardized,and the scale has good reliability and validity,which can effectively evaluate the quality of life for patients with aplastic anemia.