综合生理-心理-社会评估问卷的信效度分析

Psychometric Evaluation of the Union Physio-Psycho-Social Assessment Questionnaire

目的对综合生理-心理-社会评估问卷(UPPSAQ-70)进行信效度分析。方法选取2013年4月至2018年7月就诊于北京协和医院、由医生开具心理评估、并在心理评估室同时完成UPPSAQ-70和症状自评量表(SCL-90)评估的患者,固定因子数为8个因子和3个因子,进行探索性因子分析;采用Amos23.0对原8因子模型、8因子模型-修订、原3因子模型、3因子模型-修订和单因子模型进行验证性因子分析;以SCL-90的各因子为校标,计算因子之间的相关系数,验证区分效度。对2018年7月完成UPPSAQ-70评估的患者进行重测,检验重测信度。结果UPPSAQ-70的8因子模型包含:情绪、焦虑与疲劳、睡眠、躯体不适、性功能、快乐和满意度、疑病和社交焦虑;3因子模型包含:心理维度症状、生理维度症状和社会维度症状。验证性因子分析提示,8因子修订模型具有较好的拟合程度(χ^2=10410.4,df=1862,RMSEA=0.07,CFI=0.753,NFI=0.715)。8因子模型以SCL-90为校标,除情绪量表与抑郁(r=0.600)、焦虑(r=0.520)相关度相对较高,其他症状相关度较低(r<0.5)。量表各因子的Chronbach’sα系数在0.823~0.904之间,删除各条目后全量表的Chronbach’sα系数在0.954~0.956之间。该量表的重测信度为Chronbach’sα系数0.847,两次重测各项均显著相关(P<0.05)。结论UPPSAQ-70是良好的评估人的整体健康状况的量表,适宜综合医院使用。

Objective To validate the Union Physio-Psycho-Social Assessment Questionnaire(UPPSAQ-70)and test its validity and reliability. Methods From April,2013 to July,2018,patients were asked to finish the computer evaluation of UPPSAQ-70 and Symptom Checklist 90(SCL-90)in Peking Union Medical College Hospital(PUMCH).Confirmatory factor analysis(CFA)was conducted on the SPSS 17.0,and the number of fixed factors was 8 factors and 3 factors.Amos 23.0 was used to verify the original 8-factor model, 8-factor revision model,3-factor model,3-factor revision model,and single-factor model.Each factor of SCL-90 was used as the calibration standard to calculate the correlation coefficient between factors.The retest reliability was tested by the outpatients in PUMCH in July,2018. Results Exploratory factor analysis indicated that the 8-factor revised model included:depression,anxiety and fatigue,sleep,physical discomfort,sexual function,happiness and satisfaction,hypochondria,and social anxiety.The 3 factors revised model included that:psychological,physiological and social dimension.Confirmatory factor analysis indicated that the 8-factor modified model was superior to the 3-factor model and the single-factor model:χ^2=10 410.4, df=1862,RMSEA=0.07,CFI=0.753,and NFI=0.715.With SCL-90 as the standard criteria,except the low correlation coefficient between emotional scale and depression( r=0.600)and anxiety( r=0.520),the correlation coefficients of other symptoms were below 0.5.The chronbach ’s α between each factor and total score of UPPSAQ-70 was between 0.823 and 0.904,and the Chronbach ’s α coefficient of the whole scale was between 0.954 and 0.956 after each item was deleted.The retest reliability of the scale of 32 participants Chronbach ’s α was 0.847.Each item of the scale measured between one week was significantly correlated( P <0.05). Conclusion UPPSAQ-70 is a good scale for evaluating overall health status and is especially feasible in general hospitals.