Statistical analysis
Non-normally distributed measures were expressed as medians, interquartile ranges, and non-parametric tests were used for comparison between groups, whereas count data were expressed as frequencies (composition ratio) and chi-squared tests were used for comparison between groups. Kaplan–Meier curves were plotted to compare the occurrence of adverse outcomes such as death and graft failure between the groups. Differences in the occurrence of adverse outcomes between treatment modalities were analyzed using multifactorial logistic regression. All statistical analyses were performed using SPSS (22.0) software.