Relationship between prevalence rate ratios and odds ratios in cross-sectional studies.
Relationship between prevalence rate ratios and odds ratios in cross-sectional studies.
BACKGROUND: Cross-sectional data are frequently encountered in epidemiology and published results are predominantly presented in terms of prevalence odds ratios (POR). A recent debate suggested a switch from POR, which is easily obtained via logistic regression analysis available in many statistical packages, to prevalence rate ratios (PRR). We thought it …