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PICO
Question: Among 3- and 7-year-old children, is there a relationship between maternal breastfeeding duration and exclusivity and their current cognition, and is this relationship modified by maternal fish intake during lactation?
Question type: Descriptive
Study design: Prospective cohort
Investigators from Harvard studied the effect of breastfeeding and maternal diet on child cognitive development at ages 3 and 7 years. Data for the study were obtained from mother-infant pairs enrolled from 1999 to 2002 in Project Viva, a prospective, longitudinal cohort study designed to examine prenatal factors in relation to pregnancy and child health. Enrolled mothers were asked about breastfeeding duration and exclusivity when their children were 6 and 12 months old. Three exposure groups were created: duration of any breastfeeding, duration of exclusive breastfeeding, and breastfeeding status at the …
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