中国心理卫生杂志2013，Vol.27Issue(3)：163-168,6.DOI:10.3969/j.issn.1000-6729.2013.03.001
广泛性焦虑量表中文版在中医内科门诊人群应用的信度和效度
Reliability and validity of Chinese version of the Generalized Anxiety Disorder 7-item (GAD-7) scale in screening anxiety disorders in outpatients from traditional Chinese internal department
摘要
Abstract
Objectives: To evaluate the reliability and validity of a Chinese version of the 7-item Generalized Anxiety Disorder (GAD-7) scale in screening out anxiety disorders and to identify the cut-off score for screening anxiety in outpatients from traditional Chinese internal department, thereby providing scientific evidence for its implication. Methods: Totally 2011 patients aged 18 -65 years old were selected from an internal department of traditional Chinese medicine. They were assessed with the GAD-7 and interviewed with the Mini International Neuropsy-chiatric Interview (M. I. N. I. ). Internal consistency, explosive factor analysis, receiver operating characteristic curve (ROC), and variance analysis were used to evaluate the reliability and validity of GAD-7. Results: The Cron-bach's coefficient of GAD-7 was 0. 91, and the range of correlation coefficient within the 7 items and between items and the total score of the scale was 0. 52 -0. 68 and 0. 75 -0. 85, respectively (P <0. 01). The Cronbach's coefficients were stable when any of the 7 items had been deleted. The scale was shown to be one dimensional through factor analysis (explained variance = 72%). The results of ROC analysis indicated that the area under the curve (AUC) was very good for both the generalized anxiety disorder (for GAD, AUC =0. 88) and panic disorder (for panic disorder, AUC = 0. 80), but not for agoraphobia (for agoraphobia, AUC = 0. 63). A cut point of 6 showed adequate values of sensitivity and specificity for GAD (0. 86, 0. 76), and panic disorder (0. 78, 0. 74), while inadequate for agoraphobia (0. 50, 0. 73) or mixed anxiety-depressive disorder (0. 61, 0. 74). The GAD-7 scores were higher in patients with depressive disorders, any anxiety disorders or chronic physical conditions than in those without (P <0. 05). There was a strong association between increasing GAD-7 severity scores and health service utilization or worsening function. And for outpatients without anxiety, or with mild, moderate and severe anxiety severity score, the doctor visits were 8. 09, 8. 34,13. 45 and 11. 97 times, the loss days due to physical reasons or mood reasons were 7. 78/1. 46,15. 13/7. 17,40. 27/26. 62 and 51. 65/59. 89 days, and the proportion of patients with symptom-related difficulty was 0. 1 %, 1. 3% , 17. 3% and 60. 6% , respectively. Conclusion: It suggests that the GAD-7 is a reliable and valid measure for generalized anxiety disorder or panic disorder in outpatients from traditional Chinese internal department, and may be a valuable clinical and research tool for further implication, while may be not good enough for agoraphobia or mixed anxiety-depressive disorders.关键词
广泛性焦虑量表/信度/效度/受试者工作特征曲线Key words
7-item Generalized Anxiety Disorder scale (GAD-7)/ reliability/ validity/ receiver operating characteristic curve分类
医药卫生引用本文复制引用
曾庆枝,何燕玲,刘寒,缪菊明,陈建新,徐海楠,王静夷..广泛性焦虑量表中文版在中医内科门诊人群应用的信度和效度[J].中国心理卫生杂志,2013,27(3):163-168,6.基金项目
上海市卫生局项目(2010105) （2010105）
