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Early life predictors of childhood intelligence: findings from the Mater-University study of pregnancy and its outcomes

Lawlor, DA; Najman, JM; Batty, GD; O'Callaghan, MJ; Williams, GM; Bor, W; (2006) Early life predictors of childhood intelligence: findings from the Mater-University study of pregnancy and its outcomes. PAEDIATR PERINAT EP , 20 (2) 148 - 162.

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Abstract

Lawlor DA, Najman JM, Batty GD, O'Callaghan MJ, Williams GM, Bor W Early life predictors of childhood intelligence: findings from the Mater-University study of pregnancy and its outcomes. Paediatric and Perinatal Epidemiology 2006; 20: 148-162.Growing evidence linking childhood intelligence with adult health outcomes suggests a need to identify predictors of this psychological characteristic. In this study, we have examined the early life determinants of childhood intelligence in a population-based birth cohort of individuals born in Brisbane, Australia between 1981 and 1984. In univariable analyses, family income in the year of birth, maternal and paternal education, maternal age at birth, maternal ethnicity, maternal smoking during pregnancy, duration of labour, birthweight, breast feeding and childhood height, and body mass index were all associated with intelligence at age 14. In multivariable analyses, the strongest and most robust predictors of intelligence were fan-Lily income, parental education and breast feeding, with these three variables explaining 7.5% of the variation in intelligence at age 14. Addition of other variables added little further explanatory power. Our results demonstrate the importance of indicators of socio-economic position as predictors of intelligence, and illustrate the need to consider the role of such factors in generating the association of childhood intelligence with adult disease risk.

Type: Article
Title: Early life predictors of childhood intelligence: findings from the Mater-University study of pregnancy and its outcomes
Keywords: childhood intelligence, IQ determinants, Mater-University study, MENTAL SURVEY 1932, 1946 BIRTH COHORT, COGNITIVE FUNCTION, ENVIRONMENTAL-INFLUENCES, ADULT INTELLIGENCE, TEST PERFORMANCE, SHORT STATURE, RISK-FACTORS, SOCIAL-CLASS, WEIGHT
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Pop Health Sciences > Institute of Epidemiology and Health
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Pop Health Sciences > Institute of Epidemiology and Health > Epidemiology and Public Health
URI: http://discovery.ucl.ac.uk/id/eprint/351497
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