Intracluster correlation coefficients for the brazilian multicenter study on preterm birth (EMIP): methodological and practical implications

Detalhes bibliográficos
Autor(a) principal: Lajos, Giuliane J
Data de Publicação: 2014
Outros Autores: Haddad, Samira M, Tedesco, Ricardo P, Passini Jr, Renato, Dias, Tabata Z, Nomura, Marcelo L, Rheder, Patrícia M, Sousa, Maria H, Cecatti, Jose G
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da FIOCRUZ (ARCA)
Texto Completo: https://www.arca.fiocruz.br/handle/icict/8754
Resumo: Universidade de Campinas. Faculdade de Ciências Médicas. Departamento de Obstetrícia e Ginecologia. Campinas, SP, Brasil.
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spelling Lajos, Giuliane JHaddad, Samira MTedesco, Ricardo PPassini Jr, RenatoDias, Tabata ZNomura, Marcelo LRheder, Patrícia MSousa, Maria HCecatti, Jose G2014-11-06T17:31:58Z2014-11-06T17:31:58Z2014LAJOS, Giuliane J. et al. Intracluster correlation coefficients for the brazilian multicenter study on preterm birth (EMIP): methodological and practical implications. BMC med. res. methodol. (Online)., London, v. 14, n. 54, 2014.1471-2288https://www.arca.fiocruz.br/handle/icict/8754engBioMed CentralIntracluster correlation coefficients for the brazilian multicenter study on preterm birth (EMIP): methodological and practical implicationsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleUniversidade de Campinas. Faculdade de Ciências Médicas. Departamento de Obstetrícia e Ginecologia. Campinas, SP, Brasil.Universidade de Campinas. Faculdade de Ciências Médicas. Departamento de Obstetrícia e Ginecologia. Campinas, SP, Brasil.Universidade de Campinas. Faculdade de Ciências Médicas. Departamento de Obstetrícia e Ginecologia. Campinas, SP, Brasil.Universidade de Campinas. Faculdade de Ciências Médicas. Departamento de Obstetrícia e Ginecologia. Campinas, SP, Brasil.Universidade de Campinas. Faculdade de Ciências Médicas. Departamento de Obstetrícia e Ginecologia. Campinas, SP, Brasil.Universidade de Campinas. Faculdade de Ciências Médicas. Departamento de Obstetrícia e Ginecologia. Campinas, SP, Brasil.Universidade de Campinas. Faculdade de Ciências Médicas. Departamento de Obstetrícia e Ginecologia. Campinas, SP, Brasil.Centro de Estudos Reprodutivos em Saúde de Campinas. (Cemicamp). Campinas, SP, Brasil.Universidade de Campinas. Faculdade de Ciências Médicas. Departamento de Obstetrícia e Ginecologia. Campinas, SP, Brasil. / Centro de Estudos Reprodutivos em Saúde de Campinas. (Cemicamp). Campinas, SP, Brasil.Background: Cluster-based studies in health research are increasing. An important characteristic of such studies is the presence of intracluster correlation, typically quantified by the intracluster correlation coefficient (ICC), that indicate the proportion of data variability that is explained by the way of clustering. The purpose of this manuscript was to evaluate ICC of variables studied in the Brazilian Multicenter Study on Preterm Birth. Methods: This was a multicenter cross-sectional study on preterm births involving 20 referral hospitals in different regions of Brazil plus a nested case–control study to assess associated factors with spontaneous preterm births. Estimated prevalence rates or means, ICC with 95% confidence intervals, design effects and mean cluster sizes were presented for more than 250 maternal and newborn variables. Results: Overall, 5296 cases were included in the study (4,150 preterm births and 1,146 term births). ICC ranged from <0.001 to 0.965, with a median of 0.028. For descriptive characteristics (socio-demographic, obstetric history and perinatal outcomes) the median ICC was 0.014, for newborn outcomes the median ICC was 0.041 and for process variables (clinical management and delivery), it was 0.102. ICC was <0.1 in 78.4% of the variables and <0.3 for approximately 95% of them. Most of ICC >0.3 was found in some clinical management aspects well defined in literature such as use of corticosteroids, indicating there was homogeneity in clusters for these variables. Conclusions: Clusters selected for Brazilian Multicenter Study on Preterm Birth had mainly heterogeneous findings and these results can help researchers estimate the required sample size for future studies on maternal and perinatal health.Intracluster Correlation CoefficientPreterm BirthSpontaneous Preterm LaborPremature Rupture of MembranesIndicated Preterm DeliveryNeonatal MorbidityNascimento PrematuroRuptura Prematura de Membranas FetaisTrabalho de Parto PrematuroMorbidadeinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FIOCRUZ (ARCA)instname:Fundação Oswaldo Cruz (FIOCRUZ)instacron:FIOCRUZORIGINALIntracluster correlation coefficients for the.pdfapplication/pdf215274https://www.arca.fiocruz.br/bitstream/icict/8754/1/Intracluster%20correlation%20coefficients%20for%20the.pdf438b9ae2f93a632f1523fc800284e630MD51LICENSElicense.txttext/plain1914https://www.arca.fiocruz.br/bitstream/icict/8754/2/license.txt7d48279ffeed55da8dfe2f8e81f3b81fMD52TEXTIntracluster correlation coefficients for the.pdf.txtIntracluster correlation coefficients for the.pdf.txtExtracted texttext/plain45913https://www.arca.fiocruz.br/bitstream/icict/8754/3/Intracluster%20correlation%20coefficients%20for%20the.pdf.txt37ffd056c1b2a584ca73d6b363987edaMD53icict/87542018-04-05 23:45:45.914oai:www.arca.fiocruz.br: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ório InstitucionalPUBhttps://www.arca.fiocruz.br/oai/requestrepositorio.arca@fiocruz.bropendoar:21352018-04-06T02:45:45Repositório Institucional da FIOCRUZ (ARCA) - Fundação Oswaldo Cruz (FIOCRUZ)false
dc.title.pt_BR.fl_str_mv Intracluster correlation coefficients for the brazilian multicenter study on preterm birth (EMIP): methodological and practical implications
title Intracluster correlation coefficients for the brazilian multicenter study on preterm birth (EMIP): methodological and practical implications
spellingShingle Intracluster correlation coefficients for the brazilian multicenter study on preterm birth (EMIP): methodological and practical implications
Lajos, Giuliane J
Intracluster Correlation Coefficient
Preterm Birth
Spontaneous Preterm Labor
Premature Rupture of Membranes
Indicated Preterm Delivery
Neonatal Morbidity
Nascimento Prematuro
Ruptura Prematura de Membranas Fetais
Trabalho de Parto Prematuro
Morbidade
title_short Intracluster correlation coefficients for the brazilian multicenter study on preterm birth (EMIP): methodological and practical implications
title_full Intracluster correlation coefficients for the brazilian multicenter study on preterm birth (EMIP): methodological and practical implications
title_fullStr Intracluster correlation coefficients for the brazilian multicenter study on preterm birth (EMIP): methodological and practical implications
title_full_unstemmed Intracluster correlation coefficients for the brazilian multicenter study on preterm birth (EMIP): methodological and practical implications
title_sort Intracluster correlation coefficients for the brazilian multicenter study on preterm birth (EMIP): methodological and practical implications
author Lajos, Giuliane J
author_facet Lajos, Giuliane J
Haddad, Samira M
Tedesco, Ricardo P
Passini Jr, Renato
Dias, Tabata Z
Nomura, Marcelo L
Rheder, Patrícia M
Sousa, Maria H
Cecatti, Jose G
author_role author
author2 Haddad, Samira M
Tedesco, Ricardo P
Passini Jr, Renato
Dias, Tabata Z
Nomura, Marcelo L
Rheder, Patrícia M
Sousa, Maria H
Cecatti, Jose G
author2_role author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Lajos, Giuliane J
Haddad, Samira M
Tedesco, Ricardo P
Passini Jr, Renato
Dias, Tabata Z
Nomura, Marcelo L
Rheder, Patrícia M
Sousa, Maria H
Cecatti, Jose G
dc.subject.en.pt_BR.fl_str_mv Intracluster Correlation Coefficient
Preterm Birth
Spontaneous Preterm Labor
Premature Rupture of Membranes
Indicated Preterm Delivery
Neonatal Morbidity
topic Intracluster Correlation Coefficient
Preterm Birth
Spontaneous Preterm Labor
Premature Rupture of Membranes
Indicated Preterm Delivery
Neonatal Morbidity
Nascimento Prematuro
Ruptura Prematura de Membranas Fetais
Trabalho de Parto Prematuro
Morbidade
dc.subject.decs.pt_BR.fl_str_mv Nascimento Prematuro
Ruptura Prematura de Membranas Fetais
Trabalho de Parto Prematuro
Morbidade
description Universidade de Campinas. Faculdade de Ciências Médicas. Departamento de Obstetrícia e Ginecologia. Campinas, SP, Brasil.
publishDate 2014
dc.date.accessioned.fl_str_mv 2014-11-06T17:31:58Z
dc.date.available.fl_str_mv 2014-11-06T17:31:58Z
dc.date.issued.fl_str_mv 2014
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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status_str publishedVersion
dc.identifier.citation.fl_str_mv LAJOS, Giuliane J. et al. Intracluster correlation coefficients for the brazilian multicenter study on preterm birth (EMIP): methodological and practical implications. BMC med. res. methodol. (Online)., London, v. 14, n. 54, 2014.
dc.identifier.uri.fl_str_mv https://www.arca.fiocruz.br/handle/icict/8754
dc.identifier.issn.pt_BR.fl_str_mv 1471-2288
identifier_str_mv LAJOS, Giuliane J. et al. Intracluster correlation coefficients for the brazilian multicenter study on preterm birth (EMIP): methodological and practical implications. BMC med. res. methodol. (Online)., London, v. 14, n. 54, 2014.
1471-2288
url https://www.arca.fiocruz.br/handle/icict/8754
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv BioMed Central
publisher.none.fl_str_mv BioMed Central
dc.source.none.fl_str_mv reponame:Repositório Institucional da FIOCRUZ (ARCA)
instname:Fundação Oswaldo Cruz (FIOCRUZ)
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