Methods for estimating - SciELO
Rev Sa de P blica 2008;42(6)Leticia M S CoutinhoI,IIMarcia ScazufcaII,IIIPaulo R MenezesI,III Departamento de Medicina Preventiva. Faculdade de Medicina Universidade de S o Paulo. S o Paulo, SP, BrasilII N cleo de Epidemiologia. Hospital Universit rio. Universidade de S o Paulo. S o Paulo, SP, BrasilIII Departamento de Psiquiatria. Faculdade de Medicina Universidade de S o Paulo. S o Paulo, SP, BrasilCorrespondence:Paulo Rossi MenezesDepartamento de Medicina PreventivaFaculdade de Medicina da Universidade de S o PauloAv. Dr. Arnaldo 45501246-903 S o Paulo, SP, BrasilE-mail: 11/27/2007Revised: 5/13/2008Approved: 6/4/2008Methods for estimating prevalence ratios in cross-sectional studiesABSTRACTOBJECTIVE: To empirically compare the Cox, log-binomial, Poisson and logistic regressions to obtain estimates of prevalence ratios (PR) in cross-sectional : Data from a population-based cross-sectional epidemiological study (n = 2072) on elderly people in Sao Paulo (Southeastern Brazil), conducted between May 2003 and A
2 Methods for estimating prevalence ratios Coutinho LMS et al ORs do not approximate well to PRs when the initial risk is high, and in these situations, interpreting ORs as if they were PRs may be inadequate.1,2,9,12 Some alternative statistical models that may directly
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