LeWinn KZ, Bush NR, Batra A, et al. - Researchers sought to determine modifiable factors linked with childhood cognitive performance via performing a longitudinal pregnancy cohort study including 1,503 mother-child dyads who were enrolled in the University of Tennessee Health Science Center–Conditions Affecting Neurodevelopment and Learning in Early Life study between December 1, 2006, and July 31, 2011, and were assessed annually until the children were aged 4 to 6 years. Childhood cognitive performance seemed to be correlated with 24 of 155 prenatal and postnatal exposures included to evaluate environment-wide associations; models that included all of the exposures fully accounted for the racial disparities in cognitive test scores. Following were identified as modifiable exposures: breastfeeding, parental educational levels, fostering of cognitive growth during mother-child interactions, parenting stress, and maternal reading ability, which together were linked with 0.5% of a standard deviation difference in cognitive test scores. Results overall suggest that addressing inequities in the early environment could aid in reducing racial disparities in childhood cognitive performance.