2.6. Statistical analyses
Demographic data were compared between groups using the Mann–Whitney We examined the main and interaction effects using the Bonferroni method for multiple comparisons. When both effects were present, a simple main effects test was performed using Bonferroni post hoc analysis. SPSS Statistics version 23 (IBM Inc., Armonk, Tokyo, Japan) was used for analyses, and We performed a post hoc power calculation using G*power 3.1 (Heinrich Heine University, Dusseldorf, Germany) to determine the statistical power (1-