Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, No.600 South Wanping Road, Shanghai, 200030, China.
Department of Psychological Medicine, Zhongshan Hospital, Fudan University, No.180 Fenglin Road, Shanghai, 200032, China.
BMC Psychiatry. 2020 Apr 15;20(1):170. doi: 10.1186/s12888-020-02560-w.
Panic disorder (PD) is often undiagnosed, misdiagnosed, or untreated in non-psychiatric clinical settings. Therefore, a cost-effective, accurate and easy-to-administer instrument for PD assessment is still needed. For that reason, the self-report version of the Panic Disorder Severity Scale (PDSS-SR) has been developed and suggested to be a reliable and useful tool in clinical and research settings. The current study aims to evaluate the reliability and validity of the Chinese version of the PDSS-SR and determine the cut-off score of the PDSS-SR.
A total of 133 patients with PD in Shanghai were assessed by the PDSS-SR, PDSS and Hamilton Anxiety Rating Scale (HAMA). Moreover, 117 patients with non-PD anxiety and 51 healthy subjects also completed the PDSS-SR to construct a receiver operating characteristic (ROC) curve with the scores of PD patients.
The internal consistency (Cronbach's α) of the PDSS-SR was 0.72-0.80, and the interrater correlation coefficient was 0.78. The results of principal component analysis and varimax rotation indicated that the PDSS-SR had a two-factor structure, with all seven items having salient loadings. The cut-off score was 4, which was associated with high sensitivity (96.03%) and specificity (61.31%).
The findings demonstrate that these items and the total score of the PDSS-SR have acceptable reliability and validity in patients with PD and that the PDSS-SR can be used by general doctors for clinical screening in China.
惊恐障碍（PD）在非精神科临床环境中常常未被诊断、误诊或未得到治疗。因此，仍然需要一种经济有效、准确且易于管理的 PD 评估工具。出于这个原因，开发了惊恐障碍严重程度量表（PDSS-SR）的自评版本，并建议其在临床和研究环境中是一种可靠且有用的工具。本研究旨在评估 PDSS-SR 的中文版的信度和效度，并确定 PDSS-SR 的截断分数。
共有 133 名来自上海的 PD 患者接受了 PDSS-SR、PDSS 和汉密尔顿焦虑量表（HAMA）的评估。此外，117 名非 PD 焦虑患者和 51 名健康受试者也完成了 PDSS-SR，以构建 PD 患者评分的受试者工作特征（ROC）曲线。
PDSS-SR 的内部一致性（Cronbach's α）为 0.72-0.80，评分者间相关性系数为 0.78。主成分分析和方差极大旋转的结果表明，PDSS-SR 具有两因素结构，所有七个项目都具有明显的负荷。截断分数为 4，具有较高的灵敏度（96.03%）和特异性（61.31%）。
这些项目和 PDSS-SR 的总分在 PD 患者中具有可接受的信度和效度，PDSS-SR 可由中国的普通医生用于临床筛查。
