Statistical analysis
The Statistical Program for Social Sciences (SPSS 23 for Windows) was
employed for the statistical analysis. The Mann-Whitney-Wilcoxon
rank-sum test was used to evaluate whether there was a significant
difference in HBsAb levels between patient groups after transplantation.
The χ² and Fisher exact tests were used to compare the difference in the
HBsAb negative conversion rates between groups. The receiver operating
characteristic (ROC) curve was used to evaluate the cutoff value of the
pretransplant HBsAb titers for the prediction of HBsAb disappearance
after HSCT. Multivariate analysis was performed using Cox regression.P < 0.05 (2-tailed) was identified as statistically
significant.