search for: berkson

...lysis. (For your information, relative survival is the method of choice for estimating patient survival using data collected by population-based cancer registries although its utility is not restricted to studying cancer( Dickman and Adami 2006; Dickman et al. 2004).”, which is a concept defined by Berkson (1942) and Berkson & Gage (1950).Two data files are required in order to estimate relative survival; a file containing individual-level data on the patients and a file containing expected probabilities of survival for a comparable general population.) Both the paper, Spatial variation in prost...

Since I read the list in digest form (and was out ill yesterday) I'm late to the discussion. There are 3 steps for predicting survival, using a Cox model: 1. Fit the data fit <- coxph(Surv(time, status) ~ age + ph.ecog, data=lung) The biggest question to answer here is what covariates you wish to base the prediction on. There is the usual tradeoff between too few (leave out something