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Partial likelihood ratio tests for the Cox model under complex sampling
Author(s) -
Lumley Thomas,
Scott Alastair
Publication year - 2012
Publication title -
statistics in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.996
H-Index - 183
eISSN - 1097-0258
pISSN - 0277-6715
DOI - 10.1002/sim.5492
Subject(s) - statistics , proportional hazards model , national health and nutrition examination survey , sampling (signal processing) , likelihood ratio test , stratified sampling , cohort , sample size determination , sample (material) , econometrics , survey sampling , computer science , mathematics , medicine , environmental health , population , chemistry , filter (signal processing) , chromatography , computer vision
We develop an analog of the likelihood ratio test for Cox proportional hazards models fitted to sample survey data. We look at methods for computing the asymptotic distribution and at ways of improving the small‐sample performance. The methods are illustrated with examples using data from the National Health and Nutrition Examination Survey and from a stratified case–cohort study. Copyright © 2012 John Wiley & Sons, Ltd.