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.