Thursday, March 26, 2009

Too many names

Has anybody else noticed that the conceptual idea of the difference in rates/incidence/prevalence of a disease in the exposed and unexposed has too many definitions?

I can think of papers that use: odds ratio, relative risk, cumulative incidence ratio, prevalence ratio, rate ratio, hazard ratio . . . All of which have subtle differences.

But none of which are used consistently.

I suspect that we could do a lot of good just to clean this terminology up!

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