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Early postnatal maternal stress may affect BMI in girls

German researchers found that maternal stress during the first year after birth had a strong positive association with body mass index z-scores among girls, but not boys. The findings in BMC Public Health, based on data involving 498 mother-child pairs, also associated sociodemographic factors such as low household income and parental separation and divorce, as well as environmental factors such as traffic-related burden, residential noise exposure and poor living conditions, to maternal perceived stress levels, which mediated the effect of BMI z-scores in girls.

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