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st: Rates using Poisson

From   "Sherry Lipsky" <>
To   <>
Subject   st: Rates using Poisson
Date   Mon, 13 Aug 2007 18:36:37 -0500

Two questions:
1) I would like to calculate the age-specific and age-adjusted rates of hospitalizations among the exposed and unexposed in my population-based study using Poisson/Negative Binomial models...not just the IRR. Any ideas how to do this or even if it is possible?

2) Alternatively, how can I obtain an age-adjusted rate just using standard IR calculations? I seem to only be able to calculate the unadjusted rate and a M-H RR using the command IR. any options here?

Most of the papers I have read using Poisson analysis report crude rates without Poisson (although one can calculate CIs with a Poisson distribution--not sure how to do that in Stata). Many thanks in advance.

Sherry Lipsky, PhD, MPH
Assistant Professor of Epidemiology
University of Texas School of Public Health at Houston
Dallas Regional Campus
5323 Harry Hines Blvd., V8.112
Dallas, Texas 75390-9128

(214) 648-1013   FAX: (214) 648-1081

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