Statistical analysis
The sample size was established based on that in previous studies on similar interventions [The independent t-test, chi-square test, and two-tailed Fisher exact test were used to compare demographic and clinical characteristics between the two groups. Post-hoc power analysis was used to analyze the K-LBI results using G*Power 3.1.9. Repeated measures analysis of variance was used to measure changes over time between the groups for the pre- and post-repeated measures of the K-LBI, PHQ-9, SAS, ISI-K, MSBS-8, FCV-19S, and WHOQOL-BREF. The unstructured repeated covariance type was used, and fixed effects included group (experimental and control groups) and time (before and after the intervention). The differences between the two groups over time were analyzed by the interaction between the groups using the measurement time points.Statistical significance was set at 