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Weight gain in the first two years of life is an important predictor of schooling outcomes in pooled analyses from birth cohorts from low- and middle-income countries

Matorell, Reynaldo, Horta, Bernardo L., Adair, Linda S., Stein, Aryeh D., Ritcher, Linda, Fall, Caroline H.D., Bhargava, Santosh K., Biswas, S.K. Dey, Perez, Lorna, Barros, Fernando C. and Victora, Cesar G. (2010) Weight gain in the first two years of life is an important predictor of schooling outcomes in pooled analyses from birth cohorts from low- and middle-income countries Journal of Nutrition, 140, (2), pp. 348-354. (doi:10.3945/jn.109.112300).

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Schooling predicts better reproductive outcomes, better long-term health, and increased lifetime earnings. We used data from 5 cohorts (Brazil, Guatemala, India, the Philippines, and South Africa) to explore the relative importance of birthweight and postnatal weight gain for schooling in pooled analyses (n = 7945) that used appropriate statistical methods [conditional weight (CW) gain measures that are uncorrelated with prior weights] and controlled for confounding. One SD increase in birthweight, ~0.5 kg, was associated with 0.21 y more schooling and 8% decreased risk of grade failure. One SD increase in CW gain between 0 and 2 y, ~0.7 kg, was associated with higher estimates, 0.43 y more schooling, and 12% decreased risk of failure. One SD increase of CW gain between 2 and 4 y, ~0.9 kg, was associated with only 0.07 y more schooling but not with failure. Also, in children born in the lowest tertile of birthweight, 1 SD increase of CW between 0 and 2 y was associated with 0.52 y more schooling compared with 0.30 y in those in the upper tertile. Relationships with age at school entry were inconsistent. In conclusion, weight gain during the first 2 y of life had the strongest associations with schooling followed by birthweight; weight gain between 2 and 4 y had little relationship to schooling. Catch-up growth in smaller babies benefited schooling. Nutrition interventions aimed at women and children under 2 y are among the key strategies for achieving the millennium development goal of universal primary education by 2015

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Published date: February 2010


Local EPrints ID: 72231
ISSN: 0022-3166
PURE UUID: 0c18e0b4-4b44-414c-a382-8a51af3079bf

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Date deposited: 02 Feb 2010
Last modified: 18 Jul 2017 23:55

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Author: Reynaldo Matorell
Author: Bernardo L. Horta
Author: Linda S. Adair
Author: Aryeh D. Stein
Author: Linda Ritcher
Author: Santosh K. Bhargava
Author: S.K. Dey Biswas
Author: Lorna Perez
Author: Fernando C. Barros
Author: Cesar G. Victora

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