Center for Clinical Research, Västmanlands County Hospital, Uppsala University, Västerås, Sweden.
Department of Neuroscience, Akademiska Sjukhuset, Uppsala University, Uppsala, Sweden.
Nord J Psychiatry. 2022 Apr;76(3):233-242. doi: 10.1080/08039488.2021.1956583. Epub 2021 Aug 10.
Examination of psychometric properties and diagnostic accuracy of the Depression Self-Rating Scale for Adolescents (DSRS-A) as well as development and evaluations of a shorter version, DSRS-A-Screener.
Analyses of component structure and internal consistency were performed in a community-based sample of adolescents = 4,506 and among consecutive outpatients from three child psychiatric settings in Sweden ( = 137). Concurrent validity was measured as a correlation between a summation index of the scale items and the total major depressive disorder (MDD) symptom severity score from the Kiddie Schedule of Affective Disorders and Schizophrenia (K-SADS). Diagnostic accuracy was examined in the clinical sample, with the K-SADS interview as the reference test, by receiver operating characteristic analysis (ROC), calculations of sensitivity, specificity among other measures. With the purpose to select items for a shorter scale, associations between scale items and MDD were examined with binary logistic regression. This shorter scale was thereafter examined similarly.
Based on association with MDD, five items were selected for the brief DSRS-A Screener that showed one component structure, internal consistency Cronbach's alpha .80 and.82, respectively. In the clinical population concurrent validity was Spearman's rho .63 and ROC analysis showed AUC .84 (95% CI .78-.91; < .001). The optimal cut-off for screening was 2 with sensitivity .85 and specificity of .64.
The DSRS-A Screener compared to the original scale, maintained or improved reliability, validity, and showed moderate diagnostic accuracy.
检验青少年抑郁自评量表（DSRS-A）的心理计量学特性和诊断准确性，以及开发和评估更简短的版本 DSRS-A-Screener。
在一个基于社区的青少年样本（n=4506）和瑞典三个儿童精神病学环境中的连续门诊患者（n=137）中进行成分结构和内部一致性分析。同时效度以量表项目总和指数与 Kiddie 情感障碍和精神分裂症评定量表（K-SADS）的总重度抑郁症（MDD）症状严重程度评分之间的相关性来衡量。在临床样本中，以 K-SADS 访谈为参考测试，通过接收者操作特征分析（ROC）、敏感性和特异性等指标来检查诊断准确性。为了选择更简短量表的项目，使用二元逻辑回归检查量表项目与 MDD 之间的关联。此后，类似地检查了这个更简短的量表。
基于与 MDD 的关联，选择了五个项目用于简短的 DSRS-A Screener，该量表显示出一个成分结构，内部一致性 Cronbach's alpha 分别为.80 和.82。在临床人群中，同时效度为 Spearman's rho.63，ROC 分析显示 AUC.84（95% CI.78-.91；<.001）。用于筛查的最佳截断值为 2，敏感性为.85，特异性为.64。
与原始量表相比，DSRS-A Screener 保持或提高了可靠性、有效性，并显示出中等的诊断准确性。
