Abstract
BackgroundPanic 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.MethodsA 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.ResultsThe 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%).ConclusionsThe 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.
Highlights
Panic disorder (PD) is often undiagnosed, misdiagnosed, or untreated in non-psychiatric clinical settings
Demographic properties The mean age of the total PD sample (n = 133) was 37 ± 12 years
We compared the PD, non-PD anxiety and healthy groups according to age, sex, education and the Panic Disorder Severity Scale (PDSS)-SR score using the Chi-square test
Summary
Panic disorder (PD) is often undiagnosed, misdiagnosed, or untreated in non-psychiatric clinical settings. 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. China for current PD is 1.08‰ (95% CI: 0.74–1.43), and the lifetime prevalence is 3.44‰ (95% CI: 2.46–4.41). Compared with females, males seem to have a lower risk of developing PD (current: OR = 0.50, 95% CI: 0.32–0.77; lifetime: OR = 0.49, 95% CI: 0.33–0.72) [3]. Several effective treatments are available, as many as half of individuals with PD are undiagnosed, misdiagnosed, or untreated [1, 5, 6], which makes it necessary to make an effort to better understand PD
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