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Using an interactive linear regression model it was shown that for the population of children of women who had no more than 4 years of formal schooling, the association of maternal education and child weight differed significantly across the socio-environment. The relationship was flat and non-significant in the lowest socio-environment, positive and significant (P < 0.05) in intermediate conditions, and weakly positive under the best socio-environment conditions. Among children of mothers attaining higher levels of education, an unexpected negative association was found. It could be that maternal education had enabled women to participate in activities outside the home without simultaneously ensuring adequate child care.
Reed et al. (Mon,) studied this question.