Figure 6

Association between breastfeeding exposures and three behavioural domains at 2 years of age. The central dots represent the change in the neurodevelopmental score (with vertical lines representing 95% CIs) for each unit increase in the continuous exposure. Results from linear regression models adjusted for age at assessment, sex, gestational age at birth, birth weight, birth length, NICU stay, maternal education, maternal age, fetal head circumference z-score, postnatal smoking exposure, and length z-score at 2 years except for BMI at 2 years. For formula use, we further adjusted by the timing of initiation and periods covered. With robust standard errors. EBF = duration of exclusive breastfeeding in months. Feeds = number of breast milk feeds per day. BF = duration of any breastfeeding in months. Formula = duration of formula use in months. Intro solids = weaning age in months.