Statistical analyses
G*Power 3.1.9.7 software was used for sample size calculation. According to our pre-experiment, the effect size was set at 0.4 which is a large Cohen’s univariate effect size convention, the test level was set at 0.05, and the test power was 0.90. The total sample size was 93. Considering the loss to follow-up, 112 patients were collected. SPSS 23.0 was applied to analyze all the data. Mean ± standard deviation (SD) was used for the quantitative data. One-way ANOVA was used for the comparison of the four groups, SNK test was used for the comparison between two groups, and repeated-measures ANOVA was used for the repeated-measures data. For the qualitative data, chi-square test was used for the comparison between groups. Differences were considered statistically significant at 