Multivariate analyses for relapse-free survival and nonrelapse mortality. Forest plots showing the results of multivariate analysis for relapse-free survival (A) and nonrelapse mortality (B). The covariates selected in the final model are shown. Positively and negatively significant factors are shown in red and blue, respectively. Missing data were complemented by multiple imputation and the final model was constructed with competing regression model using covariates which were stably selected in all the 100 imputed data sets.