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Multivariate Cholesky models of human female fertility patterns in the NLSY.
Rodgers, Joseph Lee; Bard, David E; Miller, Warren B.
Afiliación
  • Rodgers JL; Department of Psychology, University of Oklahoma, Norman, OK 73019, USA. jrodgers@ou.edu
Behav Genet ; 37(2): 345-61, 2007 Mar.
Article en En | MEDLINE | ID: mdl-17205393
Substantial evidence now exists that variables measuring or correlated with human fertility outcomes have a heritable component. In this study, we define a series of age-sequenced fertility variables, and fit multivariate models to account for underlying shared genetic and environmental sources of variance. We make predictions based on a theory developed by Udry [(1996) Biosocial models of low-fertility societies. In: Casterline, JB, Lee RD, Foote KA (eds) Fertility in the United States: new patterns, new theories. The Population Council, New York] suggesting that biological/genetic motivations can be more easily realized and measured in settings in which fertility choices are available. Udry's theory, along with principles from molecular genetics and certain tenets of life history theory, allow us to make specific predictions about biometrical patterns across age. Consistent with predictions, our results suggest that there are different sources of genetic influence on fertility variance at early compared to later ages, but that there is only one source of shared environmental influence that occurs at early ages. These patterns are suggestive of the types of gene-gene and gene-environment interactions for which we must account to better understand individual differences in fertility outcomes.
Asunto(s)

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fertilidad / Modelos Genéticos Tipo de estudio: Prognostic_studies Límite: Female / Humans Idioma: En Revista: Behav Genet Año: 2007 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fertilidad / Modelos Genéticos Tipo de estudio: Prognostic_studies Límite: Female / Humans Idioma: En Revista: Behav Genet Año: 2007 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos