Primal Health Databank: Study
| Entry No: | 0920 |
| Title: | Association between breastfeeding and intelligence, educational attainment, and income at 30 years of age: a prospective birth cohort study from Brazil. |
| Author(s): | Victoria CG, Horta BL, etc.. |
| Reference: | Lancet Glob Health. 2015 Apr;3(4):e199-205. doi: 10.1016/S2214-109X(15)70002-1. |
| Place of Study: | Brazil |
| Abstract: | A prospective, population-based birth cohort study of neonates was launched in 1982 in Pelotas, Brazil. Information about breastfeeding was recorded in early childhood. At 30 years of age, the authors studied the IQ (Wechsler Adult Intelligence Scale, 3rd version), educational attainment, and income of the participants. For the analyses, they used multiple linear regression with adjustment for ten confounding variables and the G-formula.
From June 4, 2012, to Feb 28, 2013, of the 5914 neonates enrolled, information about IQ and breastfeeding duration was available for 3493 participants. In the crude and adjusted analyses, the durations of total breastfeeding and predominant breastfeeding (breastfeeding as the main form of nutrition with some other foods) were positively associated with IQ, educational attainment, and income. The authors identified dose-response associations with breastfeeding duration for IQ and educational attainment. In the confounder-adjusted analysis, participants who were breastfed for 12 months or more had higher IQ scores (difference of 3·76 points, 95% CI 2·20-5·33), more years of education (0·91 years, 0·42-1·40), and higher monthly incomes (341·0 Brazilian reals, 93·8-588·3) than did those who were breastfed for less than 1 month. The results of our mediation analysis suggested that IQ was responsible for 72% of the effect on income.
|
| Keyword(s): | breastfeeding, intellectual development, Intellectual quotient, IQ |
| Discussion: | No discussion mentioned for this entry |
| See Also: | No related entries mentioned for this entry |
Go Back | New Keyword Search