Reference - Calculating risk includes quantitative representations of both general and specific risks, and the interpretation of risk is empirical risk.

Hi,

Good question: you are dealing with statistical estimates. I assume you are dealing with epidemiological data and a specific type of epidemiological study. The quickest source is Wikipedia. Using a two*two table, the section on your topic illustrates the basic rules, and extends them to odds ratios, sensitivity, specificity and so on. The mathematical part is extremely simple (for a two*two contingency table). You should also consider how to deal with probabilistic uncertainty in these numbers when calculating relative risks and odds ratios. The math gets a bit more complicates so be careful. There is no point in duplicating what Wiki does. Unless you cannot access this source you should be well on your way -- assuming you are dealing with epidemiology!

Good luck

Hello there,

Let me cut the chase and link you directly to an article i found regarding the same. hope it helps. 

Regards

http://bmcmedresmethodol.biomedcentral.com/articles/10.1186/1471-2288-12-14