PMID: 9430930Feb 1, 1997Paper

Ratio of proportions and the use of the delta method for confidence intervals in logistic regression

Revista de saúde pública
N F de OliveiraA A Lopes

Abstract

To present an application of logistic regression modelling to estimate ratios of proportions, such as prevalence ratio or relative risk, and the Delta Method to estimate confidence intervals. The Delta Method was used because it is appropriate for the estimation of variance of non-linear functions of random variables. The method is based on Taylor's series expansion and provides a good approximation of variance estimates. A computer program, utilizing the matrix module of SAS, was developed to compute the variance estimates. A practical demonstration is presented with data from a cross-sectional study carried out on a sample of 611 women, to test the hypothesis that the lack of housework sharing is associated with high scores of psychological symptoms as measured by a validated questionnaire. Crude and adjusted prevalence ratio estimated by logistic regression were similar to those estimated by tabular analysis. Also, ranges of the confidence intervals of the prevalence ratio according to the Delta Method were nearly equal to those obtained by the Mantel-Haenszel approach. The results give support to the use of the Delta Method for the estimation of confidence intervals for ratios of proportions. The method should be seen as an...Continue Reading

References

Feb 1, 1976·American Journal of Epidemiology·O Miettinen
Feb 1, 1992·American Journal of Epidemiology·D A Savitz
May 1, 1987·American Journal of Epidemiology·S Greenland
Sep 1, 1982·American Journal of Epidemiology·S Greenland, D C Thomas
Feb 1, 1994·Occupational and Environmental Medicine·U Strömberg
Aug 1, 1994·Occupational and Environmental Medicine·O AxelsonK Ekberg
Feb 1, 1994·International Journal of Epidemiology·J Lee

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Citations

Aug 26, 2003·Revista de saúde pública·Tânia M AraújoLia Aguiar
Nov 25, 2003·American Journal of Industrial Medicine·Eliane Cardoso Sales, Vilma Sousa Santana
Jun 5, 2014·Ciência & saúde coletiva·Gilmar Mercês de JesusGraciete Oliveira Vieira
Sep 15, 2005·Cadernos de saúde pública·Eduardo José Farias Borges dos ReisAnnibal Muniz Silvany Neto
Jun 12, 2008·Cadernos de saúde pública·Tânia Maria de AraújoJonathan Moura de Andrade
Mar 12, 2010·The World Journal of Biological Psychiatry : the Official Journal of the World Federation of Societies of Biological Psychiatry·Daniele Marano Rocha AraujoAntonio Egídio Nardi
Jul 12, 2012·Revista brasileira de epidemiologia = Brazilian journal of epidemiology·Suerda Fortaleza de SouzaLauro Antonio Porto
Mar 28, 2012·Revista brasileira de epidemiologia = Brazilian journal of epidemiology·Camila Rego AmorimNelson Fernandes de Oliveira
Dec 25, 2010·Revista brasileira de epidemiologia = Brazilian journal of epidemiology·Saulo Vasconcelos RochaJair Sindra Virtuoso
Aug 11, 2011·Revista de saúde pública·Carla Lima de SouzaLauro Antonio Porto
Mar 22, 2013·Revista brasileira de epidemiologia = Brazilian journal of epidemiology·Saulo Vasconcelos RochaJair Sindra Virtuoso Júnior
Mar 3, 2004·American Journal of Industrial Medicine·Maria Isabel Pereira ViannaDana Loomis
Feb 14, 2006·Cadernos de saúde pública·Carlito Lopes Nascimento SobrinhoIsis Sacramento Ferreira
Mar 11, 2008·Cadernos de saúde pública·Tatiana F de AlmeidaIsaac S Gomes Filho
Aug 3, 2010·Revista de saúde pública·Suerda Fortaleza de SouzaLauro Antonio Porto
Feb 23, 2011·Revista latino-americana de enfermagem·Natália da Rosa Fonseca, Rita de Cassia Pereira Fernandes
Oct 15, 2019·Journal of Interpersonal Violence·Albanita G C de Ceballos, Fernando M Carvalho
Sep 1, 2007·Child and Adolescent Mental Health·Vilma SantanaSharon P Cooper
Jun 5, 2014·Revista brasileira de epidemiologia = Brazilian journal of epidemiology·Denismar Borges de MirandaEdriene Barros Teixeira
Mar 13, 2019·International Journal of Environmental Research and Public Health·Maria Carolina Barreto Moreira CoutoRita Franco Rego
Aug 31, 2011·Cadernos de saúde pública·Jefferson Paixão CardosoEduardo José Farias Borges dos Reis
Jun 6, 2002·Cadernos de saúde pública·Márcia Helena BaldaniJosé Leopoldo Ferreira Antunes

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