Statistical analysis
Normal distributed data were presented as mean (standard deviation [SD]) and other data as median (range). Student’s t-test and Wilcoxon rank sum test were used to test for differences in normally distributed and non-normally distributed data, respectively. Proportions were presented as numbers (n, %), and data were compared using Chi-square analysis. P-values < 0.05 were considered statically significant. Statistical analyses were computed using Stata version 17 (Stata Release 12, College Station, TX) and Excel version 2016.