The odds ratio [1][2][3] is a measure of effect size, describing the strength of association or non-independence between two binary data values. It is used as a descriptive statistic, and plays an important role in logistic regression.

References Edit

  1. Cornfield, J. "A method of estimating comparative rates from clinical data. Applications to cancer of the lung, breast, and cervix". Journal of the National Cancer Institute 11: 1269–1275. 
  2. Mosteller, Frederick (1968). "Association and Estimation in Contingency Tables". Journal of the American Statistical Association 63 (321): 1–28. 
  3. Edwards, A.W.F. (1963). "The measure of association in a 2x2 table". Journal of the Royal Statistical Society, Series A 126 (1): 109–114. 
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