Figure 2.

Boxplots show difference (extrapolated minus observed) for (A) 10-year restricted mean survival time (RMST) and (B) survival proportions at 10 years across 15 cancer cohorts, by model, survival framework, and follow-up time used for extrapolation. The extrapolated values were retrieved from models fitted to 2, 3, and 5 years of follow-up data and predicted to 10 years. The observed values were from Kaplan-Meier survival estimates of 10 years. Boxplots in blue represent models using an all-cause survival framework, while those in red are using a relative survival framework.