Nicky Clisby writes: >Can anyone tell me what an 'Adjusted' odds ratio is please? You will often see odds ratios estimated using logistic regression. If that logistic regression model includes a covariate, in addition to the treatment variable, then the resulting odds ratio for the treatment effect of that model is said to be adjusted for the covariate. The adjusted odds ratio represents the estimated ratio in the odds between the treatment and the control group, holding the covariate constant between the groups. Steve Simon, [log in to unmask], Standard Disclaimer. STATS: STeve's Attempt to Teach Statistics. http://www.cmh.edu/stats