We have a set of cases/controls for stroke, with fe loci genotyped and also age. We found few allelic combinations associated with the disease, but would like to account for age also. Some publications state that their logistic regression p-values are age-adjusted, and we now wonder what it means.
Do they simply include age in their regression model or is there a special procedure for that?
Searched all for a week and still nothing sensible, any advice appreciated.