Statistical analysis
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IBM® SPSS Statistics for Windows, version 25.0. Armonk, NY: IBM Corp was used for statistical analyses. Shapiro-Wilk test was performed to examine data distribution. Baseline variables were compared between groups using the independent t-test for continuous data and the chi-square test for categorical data. Continuous variables were reported as the mean and standard deviation. The categorical variables were stated as frequencies. A 2 × 3 (group × time) repeated measure ANOVA was performed to compare within- and between-group differences. The time variables were baseline, 1-day and 2-weeks after treatment, and the group variables were experimental and control group. Mann-Whitney U-test was used to compare between-group means on the one day and two weeks after the interventions. The Bonferroni post hoc test was performed for both groups to determine the effect of intervention in each time periods. Statistical significance level was set at p < 0.05.