Fig. 1

Relative survival of patients with de novo DLBCL and t-FL by age and stage. A Age < 65 years. B Age ≥ 65 years. C Limited stage. D Advanced stage. The start of each survival curve corresponds to the date of diagnosis of DLBCL, either transformed or de novo. 95% confidence intervals are shown but are not visible for de novo DLBCL due to the larger sample size