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- Title
Cognition and behavioural development in early childhood: the role of birth weight and postnatal growth.
- Authors
Huang, Cheng; Martorell, Reynaldo; Ren, Aiguo; Li, Zhiwen
- Abstract
We evaluate the relative importance of birth weight and postnatal growth for cognition and behavioural development in 8389 Chinese children, 4-7 years of age. Method Weight was the only size measure available at birth. Weight, height, head circumference and intelligence quotient (IQ) were measured between 4 and 7 years of age. Z-scores of birth weight and postnatal conditional weight gain to 4-7 years, as well as height and head circumference at 4-7 years of age, were the exposure variables. Z-scores of weight at 4-7 years were regressed on birth weight Z-scores, and the residual was used as the measure of postnatal conditional weight gain. The outcomes were child's IQ, measured by the Chinese Wechsler Young Children Scale of Intelligence, as well as internalizing behavioural problems, externalizing behavioural problems and other behavioural problems, evaluated by the Child Behavior Checklist 4-18. Multivariate regressions were conducted to investigate the relationship of birth weight and postnatal growth variables with the outcomes, separately for preterm children and term children.
- Publication
International journal of epidemiology, 2013, Vol 42, Issue 1, p160
- ISSN
1464-3685
- Publication type
Journal Article
- DOI
10.1093/ije/dys207