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Article: Confounding, homogeneity and collapsibility for causal effects in epidemiologic studies

TitleConfounding, homogeneity and collapsibility for causal effects in epidemiologic studies
Authors
KeywordsCausal effect
Collapsibility
Confounding
Effect modification
Homogeneity
Issue Date2001
PublisherAcademia Sinica, Institute of Statistical Science. The Journal's web site is located at http://www.stat.sinica.edu.tw/statistica/
Citation
Statistica Sinica, 2001, v. 11 n. 1, p. 63-75 How to Cite?
AbstractDetection of confounding and confounders is important for observational studies, and especially so for epidemiologic studies. Miettinen and Cook (1981) derived two criteria for detecting confounders. Using a model, Wickramaratne and Holford (1987) proved that the two criteria are necessary but not sufficient conditions for confounders. We take uniform nonconfounding to mean there is no confounding at a coarse-subpopulation-level obtained by pooling any number of subpopulations. We discuss the necessity and sufficiency of the two criteria for uniform nonconfounding. The concepts of homogeneity and collapsibility for causal effects are also defined, and the relation among confounding, homogeneity and collapsibility is discussed. We show that the common causal effect over all fine subpopulations is just the causal effect of the whole population.
Persistent Identifierhttp://hdl.handle.net/10722/45350
ISSN
2015 Impact Factor: 0.838
2015 SCImago Journal Rankings: 2.292
References

 

DC FieldValueLanguage
dc.contributor.authorGeng, Zen_HK
dc.contributor.authorGuo, Jen_HK
dc.contributor.authorLau, TSen_HK
dc.contributor.authorFung, WKen_HK
dc.date.accessioned2007-10-30T06:23:31Z-
dc.date.available2007-10-30T06:23:31Z-
dc.date.issued2001en_HK
dc.identifier.citationStatistica Sinica, 2001, v. 11 n. 1, p. 63-75en_HK
dc.identifier.issn1017-0405en_HK
dc.identifier.urihttp://hdl.handle.net/10722/45350-
dc.description.abstractDetection of confounding and confounders is important for observational studies, and especially so for epidemiologic studies. Miettinen and Cook (1981) derived two criteria for detecting confounders. Using a model, Wickramaratne and Holford (1987) proved that the two criteria are necessary but not sufficient conditions for confounders. We take uniform nonconfounding to mean there is no confounding at a coarse-subpopulation-level obtained by pooling any number of subpopulations. We discuss the necessity and sufficiency of the two criteria for uniform nonconfounding. The concepts of homogeneity and collapsibility for causal effects are also defined, and the relation among confounding, homogeneity and collapsibility is discussed. We show that the common causal effect over all fine subpopulations is just the causal effect of the whole population.en_HK
dc.format.extent147450 bytes-
dc.format.extent1982 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypetext/plain-
dc.languageengen_HK
dc.publisherAcademia Sinica, Institute of Statistical Science. The Journal's web site is located at http://www.stat.sinica.edu.tw/statistica/en_HK
dc.relation.ispartofStatistica Sinicaen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectCausal effecten_HK
dc.subjectCollapsibilityen_HK
dc.subjectConfoundingen_HK
dc.subjectEffect modificationen_HK
dc.subjectHomogeneityen_HK
dc.titleConfounding, homogeneity and collapsibility for causal effects in epidemiologic studiesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1017-0405&volume=11&issue=1&spage=63&epage=75&date=2001&atitle=Confounding,+homogeneity+and+collapsibility+for+causal+effects+in+epidemiologic+studiesen_HK
dc.identifier.emailFung, WK: wingfung@hku.hken_HK
dc.identifier.authorityFung, WK=rp00696en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.scopuseid_2-s2.0-0035589990en_HK
dc.identifier.hkuros57385-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0035589990&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume11en_HK
dc.identifier.issue1en_HK
dc.identifier.spage63en_HK
dc.identifier.epage75en_HK
dc.publisher.placeTaiwan, Republic of Chinaen_HK
dc.identifier.scopusauthoridGeng, Z=7101959654en_HK
dc.identifier.scopusauthoridGuo, J=7404489563en_HK
dc.identifier.scopusauthoridLau, TS=7102222359en_HK
dc.identifier.scopusauthoridFung, WK=13310399400en_HK

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