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Monday, March 15, 2010

From floated to conventional confidence intervals for the relative risks based on published dose–response data


A dose–response meta-analysis of epidemiological studies can encounter different types of confidence intervals (floated vs. conventional).

This paper illustrates how to back calculate conventional confidence intervals from a set of relative risks reported with floated confidence intervals or floated standard errors.

Furthermore, we provide an implementation of the formulas in a user-friendly program developed for Stata software.

I exemplify the point using published data about alcohol intake and endometrial cancer incidence from the Million Women Study.

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Request Reprint E-Mail: nicola.orsini@ki.se

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