SF-36量表中文版的应用及分级截断点选择的研究

Study on the application of the Chinese version of SF 36 scales and selection of interceptive cents for its grade range

目的 探讨美国简明健康测量量表SF-36用于中国老年人生活质量测量的可行性,并依据中国调查表来划分美国SF-36量表中文版的总分分级范围。方法 采用SF-36量表和中华医学会研制的老年人生活质量调查表同时对苏州市区167名老年人的生活质量进行测定,并对比分析其信度、效度。结果 中国老年人生活质量调查表和SF-36量表经因子分析产生的8个共因子与理论结构基本一致,结构效度的累积方差贡献为74.244％和72.081％,其分半信度分别为0.6676和0.9384。SF-36量表的同质性信度系数除生活活力、社会功能和心理健康3个维度,其他5个维度变化范围为0.81～0.89,满足群组比较的要求。SF-36量表较中国老年人生活质量量表的信度、效度更好。同时,确定划分SF-36量表的总分良好与中等的最佳截断点为117分,Kappa值为0.58。结论SF-36量表可以用于中国老年人的健康状况测量评估,划分生活质量“良”与“中”的最佳截断点为117分,为衡量老年人生活质量水平提供参考。

Objective To study the possibility of measuring quality of life by Medical Outcomes Study 36-Item Short-Form Health Survey scale and to subdivide grade range of Medical Outcomes Study 36-Item Short-From Health Survey (SF-36) total cents through a Quality of Life questionnaire among the elderly Chinese. Methods The quality of life of the 167 elderly Chineses in Suzhou was measured simultaneously by SF-36 and the Quality of Life questionnaire developed by Epidemiology Group of Geriatric Medicine Committee of China for the elderly. Validity and reliability were analyzed and subdivided the grade range of SF-36 total scores by Quality of Life questionnaire for the Chinese elderly. Results Eight common factors from factorial analysis were in accordance with their theoretical structure, and the cumulative contribution rates of the Quality of Life questionnaire for the elderly and SF-36 were 74.244 % and 72.081% . The split-half reliability of the Quality of Life questionnaire for the elderly was 0.6676. The split-half reliability of SF-36 was 0.9384. In SF-36, the Cronbach' s a coefficient of internal consistency reliability ranged from 0.81 to 0.89, which was satisfactory for group comparison except 0.63 for the social functioning and 0.42 for mental health scale and 0.69 for vitality scale. The Quality of Life questionnaire for old people seemed to have good validity and reliability but the SF-36 was better. The cent of the furthest truncation between the good quality of life and the medium one in the SF-36 was 117 with a Kappa value of 0.58. Conclusion The SF-36 scale could be used for measuring and evaluating the quality of life for the Chinese elderly. The cent of the furthest truncation could provide reference to judge the level of the quality of life of the elderly.