A SAS macro for a clustered logrank test.

Journal Article (Journal Article)

The clustered logrank test is a nonparametric method of significance testing for correlated survival data. Examples of its application include cluster randomized trials where groups of patients rather than individuals are randomized to either a treatment or a control intervention. We describe a SAS macro that implements the 2-sample clustered logrank test for data where the entire cluster is randomized to the same treatment group. We discuss the theory and applications behind this test as well as details of the SAS code.

Full Text

Duke Authors

Cited Authors

  • Stedman, MR; Gagnon, DR; Lew, RA; Jung, S-H; Losina, E; Brookhart, MA

Published Date

  • November 2011

Published In

Volume / Issue

  • 104 / 2

Start / End Page

  • 266 - 270

PubMed ID

  • 21496938

Pubmed Central ID

  • PMC3140566

Electronic International Standard Serial Number (EISSN)

  • 1872-7565

Digital Object Identifier (DOI)

  • 10.1016/j.cmpb.2011.02.001


  • eng

Conference Location

  • Ireland