title: Guidelines for the design and analysis of studies on nonsyndromic cleft lip and cleft palate in humans: summary report from a Workshop of the International Consortium for Oral Clefts Genetics.
abstract: The members of the International Consortium for Oral Clefts Genetics recognize the need for collaboration between researchers involved in etiologic studies of nonsyndromic cleft lip and palate and cleft palate. To address this need, the consortium established four working subcommittees: diagnostic and phenotypic assessment, molecular genetic studies, epidemiologic data collection and analysis, and genetic data collection and analysis. These subcommittees were charged with the development of guidelines for data collection and analysis that would facilitate both a priori and a posteriori comparisons and pooling of data from multiple centers. This report presents summary statements of the four subcommittees.
authors.affiliation: Center for Clinical Epidemiology and Biostatistics, The University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104-6021, USA. lauramit@mail.med.upenn.edu
authors.forename: Laura E
authors.initials: LE
authors.lastname: Mitchell
authors.forename: Terri H
authors.initials: TH
authors.lastname: Beaty
authors.forename: Andrew C
authors.initials: AC
authors.lastname: Lidral
authors.forename: Ronald G
authors.initials: RG
authors.lastname: Munger
authors.forename: Jeffrey C
authors.initials: JC
authors.lastname: Murray
authors.forename: Howard M
authors.initials: HM
authors.lastname: Saal
authors.forename: Diego F
authors.initials: DF
authors.lastname: Wyszynski
mesh_terms: D002971:Cleft Lip / Q000175:diagnosis / Q000235:genetics*; D002972:Cleft Palate / Q000175:diagnosis / Q000235:genetics*; D003625:Data Collection; D016021:Epidemiologic Studies; D006801:Humans; D015201:Meta-Analysis as Topic; D008967:Molecular Biology; D015337:Multicenter Studies as Topic; D010641:Phenotype; D012107:Research Design