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Influence of early-life risk factors on socioeconomic inequalities in weight gain
journal contribution
posted on 2018-12-01, 00:00 authored by Isabel Iguacel, Alexandra Chung, Emma Gearon, Luis A Moreno, Anna PeetersAnna Peeters, Kathryn BackholerKathryn BackholerBackground: Previous research has examined the role of early-life risk factors on childhood weight gain.The extent to which these factors drive socioeconomic differences in weight is unclear. We aimed to quantify the influence of early-life risk factors on the development of socioeconomic inequalities in children's body mass index (BMI) z-score at 10-11 years. Methods: Overall, 2186 children from the Longitudinal Study of Australian Children were examined. Socioeconomic position (SEP) was measured as a continuous composite of parent's education, occupation and income. The Product of Coefficients mediation method was used to quantify the contribution of maternal smoking during pregnancy, gestational diabetes, prematurity, caesarean section, birthweight, not being breastfed, early introduction of solid food, maternal BMI and paternal BMI to the relationship between SEP and BMI z-score. Results: Each increasing decile of SEP (higher SEP) was associated with a 0.05 unit lower (95% CI: -0.06, -0.03) BMI z-score at 10-11 years. In total, 83.5% of these differences in BMI z-score could be explained by socioeconomic differences in maternal smoking during pregnancy (26.9%), maternal BMI (39.6%) and paternal BMI (17.0%). Conclusions: Interventions to reduce socioeconomic inequalities in excess weight gain during childhood should support the attainment of a healthy parental weight and prevent smoking during pregnancy.
History
Journal
Journal of public healthVolume
40Issue
4Pagination
e447 - e455Publisher
Oxford University PressLocation
Oxford, Eng.Publisher DOI
eISSN
1741-3850Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2018, The AuthorsUsage metrics
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