Fig. 2: Hazard function and cumulative mortality comparing SPC to matched FPC.

Non-parametric hazard functions with hazard ratios (HRs) and 95% confidence intervals (CIs) for cancer mortality (a) and all-cause mortality (b). Cumulative mortality functions for cancer mortality (c) and all-cause mortality (d). SPC and FPC were matched by propensity scores calculated from race, age at diagnosis, cancer type, year of diagnosis, surgery, chemotherapy, and radiotherapy. Shaded areas in c and d show the 95% CIs of cumulative mortality. The absolute differences in 5 year, 10 year and overall mortality are provided below the figures. FPC first primary cancer, SPC second primary cancer.