Global tests in the additive hazards regression model
- 26 June 2007
- journal article
- editorial
- Published by Wiley in Statistics in Medicine
- Vol. 27 (6), 831-844
- https://doi.org/10.1002/sim.2972
Abstract
In this article, we discuss testing for the effect of several covariates in the additive hazards regression model. Bhattacharyya and Klein (Statist. Med. 2005; 24(14):2235–2240) note that an ad hoc weight function suggested by Aalen (Statist. Med. 1989; 8:907–925) is inconsistent when used as a global test for comparing groups since the test statistic depends on which group is used as the baseline group. We will suggest a simple alternative test that does not exhibit this problem. This test is a natural extension of the logrank test. We shall also discuss an alternative covariance estimator. The tests are applied to a data set and a simulation study is performed. Copyright © 2007 John Wiley & Sons, Ltd.Keywords
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