Avtor/Urednik		Stare, Janez; Henderson, Robin; Pohar, Maja
Naslov		An individual measure of relative survival
Tip		članek
Vir		Appl Stat-j Roy St C
Vol. in št.		Letnik 54, št. 1
Leto izdaje		2005
Obseg		str. 115-26
Jezik		eng
Abstrakt		Relative survival techniques are used to compare survival experience in a study cohort with that expected if background population rates apply. The techniques are especially useful when cause-specific death information is not accurate or not available as they provide a measure of excess mortality in a group of patients with a certain disease. Whereas these methods are based on group comparisons, we present here a transformation approach which instead gives for each individual an outcome measure relative to the appropriate background population. The new outcome measure is easily interpreted and can be analysed by using standard survival analysis techniques. It provides additional information on relative survival and gives new options in regression analysis. For example, one can estimate the proportion of patients who survived longer than a given percentile of the respective general population or compare survival experience of individuals while accounting for the population differences. The regression models for the new outcome measure are different from existing models, thus providing new possibilities in analysing relative survival data. One distinctive feature of our approach is that we adjust for expected survival before modelling. The paper is motivated by a study into the survival of patients after acute myocardial infarction.
Deskriptorji		MYOCARDIAL INFARCTION SURVIVAL ANALYSIS COHORT STUDIES REGRESSION ANALYSIS