Fig. 2

HR and 95% CI from multivariable models evaluating VZV reactivation as a risk factor for relapse, non-relapse mortality and overall survival (OS) after allo-HSCT. Covariates: 1, donor age; 2, donor sex; 3, donor type (Mismatched related vs. Matched related, Matched unrelated vs. Matched related, or Mismatched unrelated vs. Matched related); 4, disease type (ALL vs. AML, others (CML/MDS) vs. AML); 5, High vs. low, intermediate; 6, donor lymphocyte infusion (yes vs. no); 7, acute GVHD (grade 3–4 vs. 0–2); 8, chronic GVHD (yes vs. no); 9, CMV reactivation (yes vs. no)