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Breslow–Day Test

  1. I-Ming Liu

Published Online: 15 JUL 2005

DOI: 10.1002/0470011815.b2a10009

Encyclopedia of Biostatistics

Encyclopedia of Biostatistics

How to Cite

Liu, I.-M. 2005. Breslow–Day Test. Encyclopedia of Biostatistics. 1.

Author Information

  1. National Chung Hsing University, Taiwan, Republic of China

Publication History

  1. Published Online: 15 JUL 2005


The Breslow–Day test is a test for assessing the homogeneity of the odds ratio in several 2 × 2 contingency tables. For K tables, it has approximately a chi-squared null distribution with df = K-1.


  • association;
  • chi-squared test;
  • homogeneity;
  • Mantel–Haenszel odds ratio estimator;
  • odds ratio