After fitting a flexible parametric model, we estimate internally age-standardised 5-year survival for males and females for each year of diagnosis.
The code used in this tutorial, along with links to the data, is available here.
This code illustrates how to apply the “Brenner alternative approach” to age-standardise net survival using external (ICSS) weights.
Age-standardised net survival using non-parametric methods (Ederer II and Pohar Perme) and ICSS weights.
In this tutorial, we use a model-based approach to estimate all-cause survival that is age-standardised to the International Cancer Survival Standard (ICSS). In a separate tutorial, we accomplished this by fitting a separate model for each age group and then taking the weighted average of the age-specific estimates to get the age-standardised estimates. In this tutorial we apply the weights at an individual level, which precludes the need to explicitly estimate survival within each age group.