PAS-7 is Superior to APAIS for Assessing Preoperative Anxiety in the Chinese Population

Abstract

PurposeThe purpose of this study is to analyze the reliability and validity of the Perioperative Anxiety Scale-7 (PAS-7), which was created by Chinese medical professionals, by using State-Trait Anxiety Scale (STAI-S) as the standard for the diagnosis of preoperative anxiety. To compare whether there is a difference between the PAS-7 and the Amsterdam Preoperative Anxiety and Information Scale (APAIS) in the diagnosis of preoperative anxiety in the Chinese population. DesignThis study was an observational study. MethodsThe PAS-7, APAIS, and STAI-S were all completed the day before surgery. The internal consistency test was used to evaluate the scale's reliability, and exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) was used to assess the scale's construct validity. Pearson correlation was used to analyze the correlation between PAS-7 and STAI-S, and APAIS. The area under the receiver operating characteristic (ROC) curve were used to compare the diagnostic value of PAS-7 and APAIS.Findings:The PAS-7 Cronbach's α coefficient was 0.804. The indicators of the overall fitting coefficient were within the acceptable range. PAS-7 scores correlated well with STAI-S and APAIS scores (p<0.01). The area under the ROC curve of PAS-7 was 0.808 (0.752-0.856), and the area under the ROC curve of APAIS was 0.674 (0.611-0.733). The difference between areas was 0.133 (0.0612-0.206), P<0.001, and the diagnostic value of PAS-7 was higher than that of APAIS.Conclusions:The PAS-7 scale has high reliability and validity and can assess preoperative anxiety in patients undergoing elective surgery. PAS-7 is superior to APAIS for assessing preoperative anxiety in the Chinese population.