地震后斯坦福急性应激反应问卷最佳筛查阈值ROC分析

目的:评估地震后第2周转移安置点灾民的急性应激障碍(ASD).探讨斯坦福急性应激反应问卷(SASRQ)的最佳筛查阈值.方法:利用SASRQ对灾民223人进行评估,根据美国精神障碍诊断和统计手册第4版(DSM-IV)症状标准进行症状学分析,以此结果为状态变量,以SASRQ量表总分为检测变量得到ROC曲线,以曲线上约登指数最大点为SASRQ最佳筛查阈值.结果:16人(7.2％)符合DSM-IV的ASD症状学诊断标准.有分离症状69人(30.9％),创伤再体验症状98人(44.0％),回避症状70人(31.4％),焦虑或醒觉性增高症状117人(52.5％).ROC曲线下面积0.907 ±0.021 (95％CI:0.865 ～0.939),P＜O.01.以SASRQ总分40分为阈值时约登指数最大(0.711),筛查敏感度为0.938,特异度为0.773.结论:地震后第2周灾民中ASD常见,40分可能是SASRQ的最佳筛查阳性阈值.

Roc curve analysisia of optimal cutoff value of SASRQ for screening acute stress disorder after earthquake

Objective:To assess acute stress disoder(ASD) symptoms and study the optimal cutoff value of Stanford acute stress reaction questionnaire(SASRQ) among victims of earthquake in temporary settlements.Methods:Two hundred and twenty-three victims were randomly chosen and measured by SASRQ.Then data were analyzed according to symptom criteria of DSM-IV ASD,and the result of symptomatology analysis was taken as actual state variable of ROC curve and total score of SASRQ as the test variable.The point on ROC curve...