1997
DOI: 10.1093/ije/26.1.220
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Relationship between prevalence rate ratios and odds ratios in cross-sectional studies.

Abstract: We think that the choice between POR or PRR in a cross-sectional study ought to be based on epidemiological grounds and not on the availability of software tools. The paper offers a formula and some-examples for a better understanding of the relationship between PRR and POR as a function of the prevalence of the disease and the prevalence of the exposure.

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Cited by 237 publications
(184 citation statements)
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“…We then used these adjusted probabilities of reperfusion to compute the adjusted prevalence ratios among the subgroups of patients. 22 To determine the 95 percent confidence intervals, statistical differentials were used to approximate the variance for the prevalence ratios. 23 In addition, potential confounders were entered into a regression model in which the main independent variables were the subgroups of patients, represented by three dummy variables, with white men as the reference group.…”
Section: Discussionmentioning
confidence: 99%
“…We then used these adjusted probabilities of reperfusion to compute the adjusted prevalence ratios among the subgroups of patients. 22 To determine the 95 percent confidence intervals, statistical differentials were used to approximate the variance for the prevalence ratios. 23 In addition, potential confounders were entered into a regression model in which the main independent variables were the subgroups of patients, represented by three dummy variables, with white men as the reference group.…”
Section: Discussionmentioning
confidence: 99%
“…No entanto, a medida expressa nos resultados foi a "razão de odds", em parte por ser a forma apresentada na regressão logística. Além disso, apesar de superestimar o efeito observado, em doenças com longa latência e diferentes períodos de duração (como a doença mental), a RO de prevalência é a medida de escolha por ser a melhor aproximação da razão de densidade de incidência 14,28 . No entanto, sugere-se um artigo metodológico específico para estudar a comparação desses resultados utilizando diferentes medidas de efeito.…”
Section: Discussionunclassified
“…Se definió como variable de salida Enfermedad Periodontal y como variables explicatorios las otras variables recolectadas. 17,18 Se analizaron por separado cada una de estas variables en el análisis de regresión binomial bivariado inicial. A partir de éste se seleccionaron para el modelo final las variables que obtuvieran probabilidad igual o inferior a p=0.25 y se forzaron en el modelo aquellas que se consideraron biológicamente significativas.…”
Section: Materiales Y Métodosunclassified