Statistical analysis
The sample size was calculated using the PASS11 software for Windows 10. According to the results of Lee [Statistical analyses were carried out using the Statistical Package for Social Sciences (version 21.0, SPSS). All quantitative variables were examined for normal distribution and variance homogeneity. Data with a normal distribution were expressed as the mean ± standard deviation (mean ± SD), and one-way analysis of variance (ANOVA) was used to compare differences between groups. The non-normal distribution data were presented as median (first quartile, third quartile), and the group differences were compared using the non-parametric Kruskal–Wallis test. The qualitative variables were presented as numbers/percentages, and the groups were compared using the Pearson's chi-squared test or the Fisher exact test. All 