Statistical analysis
Continuous variables which followed a normal distribution pattern were presented as mean ± SD, and non-normal variables were reported as median (interquartile range (IQR)). Categorical variables were reported as numbers and percentages. To compare the categorical variables, Chi-squared test or Fisher’s exact test was performed. For normally and non-normally distributed data, paired T-test and Wilcoxon signed-rank test were performed, respectively. A two-sided p-value<0.05 was considered statistically significant. The statistical analysis was conducted using IBM SPSS Statistics for Windows, version 26 (IBM Corp., Armonk, N.Y., USA).