Breastfeeding is associated with the intelligence of school‐age children in Mexico

Autor: Lidia Sarahi Peña‐Ruiz, Mishel Unar‐Munguía, Mónica Arantxa Colchero, Fernando Alarid‐Escudero, Rafael Pérez‐Escamilla
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Maternal and Child Nutrition, Vol 19, Iss 4, Pp n/a-n/a (2023)
Druh dokumentu: article
ISSN: 1740-8709
1740-8695
DOI: 10.1111/mcn.13534
Popis: Abstract Breastfeeding has been consistently associated with higher intelligence since childhood. However, this relation could be confounded due to maternal selection bias. We estimated the association between predominant breastfeeding and intelligence in school‐age children considering potential selection bias and we simulated the intelligence gap reduction between low versus higher socioeconomic status children by increasing breastfeeding. We analysed predominant breastfeeding practices (breastmilk and water‐based liquids) of children 0–3 years included in the Mexican Family Life Survey (MxFLS‐1). Intelligence was estimated as the z‐score of the abbreviated Raven score, measured at 6–12 years in the MxFLS‐2 or MxFLS‐3. We predicted breastfeeding duration among children with censored data with a Poisson model. We used the Heckman selection model to assess the association between breastfeeding and intelligence, correcting for selection bias and stratified by socioeconomic status. Results show after controlling for selection bias, a 1‐month increase in predominant breastfeeding duration was associated with a 0.02 SD increase in the Raven z‐score (p
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