Fig. 1

Kaplan-Meier curves for OS (a-c) and PFS (d-f) stratified by Ann Arbor stage IIIE/IVE (a, d), no. of extranodal sites > 3 (b, e), and hypercalcemia (c, f). Patients with DLBCL and SI are presented stratified by the three risk factors which showed a significant impact in univariate and multivariate analysis, namely Ann Arbor stage IIIE/IVE, no. of extranodal sites > 3, and hypercalcemia (from left to right)