Relative risks and odds ratios: What's the difference?Last, Allen MDWilson, Stephen MDRao, Goutham MDAuthor informationFeature EditorUPMC St. Margaret Family Practice Residency, Pittsburgh, PACorrespondence: Allen Last MD, 3518 Fifth Avenue, Pittsburgh, PA 15261. E-mail: [email protected].The Journal of Family Practice 53(2):p 108, February 2004.Copyright © Carroll Dowden © 2004.