Statistical analysis
REGRESSION
Descriptive statistics were performed by R-Studio (R version 4.0.0, 2020–04-24) and SPSS (SPSS version 27). Data are depicted as absolute numbers and percentages, medians and ranges or means and standard deviations (SD). Categorical variables were compared using the Chi-Square test. Group means of continuous variables were compared by an analysis of variance (ANOVA). Median values of not normally distributed variables were compared by Kruskal–Wallis tests. Multivariable logistic regression analysis was performed with SPSS using the following dependent variables: Overall CD34(≥ VGPR versus < VGPR). 