Analysis of Censored Life-tables with Covariates by Means of Log-linear Models
Streszczenie
In survival analysis the subject of observation is duration of time until some
event called failure event. Often in such studies only partial information on the length of
failure time is available what yields the so-called right-censored observations. The main interest
in survival analysis is either to estimate the distribution of the true failure time or to identify
the relationship between the true failure time and a set of some covariates. Additional
troublesome point of theory and application of survival techniques is treatment of grouped
observations (life-tables) along with incorporating covariates.
In the paper a new approach is considered which allows to treat the censored life-table
with qualitative covariates as a standard contingency table. Such a table can be further
analysed by means of log-linear models or other standard multivariate inference techniques. W pracy przedstawiono propozycję analizy tablicy trwania życia dla danych prawostronnie
cenzurowanych. Przedstawiona metoda pozwala na sprowadzenie takiej tablicy do wielowymiarowej
tablicy kontyngencyjnej, którą można analizować standardowymi technikami
wielowymiarowego wnioskowania statystycznego, np. za pomocą modeli logarytmiczno-liniowych.
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