Be Wary of Using Poisson Regression to Estimate Risk and Relative Risk-Juniper Publishers-Biostatistics and Biometrics Open Access Journal
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JUNIPER
PUBLISHERS-BIOSTATISTICS AND BIOMETRICS OPEN ACCESS JOURNAL Be Wary of Using Poisson Regression to Estimate Risk and Relative Risk Authored By Leigh Blizzard Fitting a log binomial model to binary outcome data makes it possible to
estimate risk and relative risk for follow-up data, and prevalence and
prevalence ratios for cross-sectional data. However, the fitting
algorithm may fail to converge when the maximum likelihood solution is
on the boundary of the allowable parameter space.