The stpp command for marginal relative survival and related measures

For the analysis of survival data obtained from cancer registries, it is common to use the relative survival framework, which incorporates expected mortality rates rather than relying on cause-of-death information. The relative survival framework enables comparisons between population groups where the effect of mortality due to the cancer is isolated to enable fair comparisons when there is differential other-cause mortality between the groups being compared. The stpp command provides nonparametric estimates of marginal relative survival and a range of other nonparametric estimates, including all-cause survival and crude probabilities of death and also recently developed reference-adjusted measures. In addition, it enables (age) standardization to be performed using both traditional standardization and the individual weighting approach. The genindweights command simplifies the process of calculating individual weights.