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Social Patterning in Adiposity in Adolescence: Prospective Observations from the Chinese Birth Cohort ‘‘Children of 1997’’

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  • L L Hui
  • Gabriel M Leung
  • C Mary Schooling

Abstract

Introduction: Low early life socio-economic position is more strongly associated with adiposity among women than men. We examined whether the sex difference of social patterning in general and central adiposity exists before adulthood. Methods: In Hong Kong’s “Children of 1997” birth cohort, we used multivariable regression to examine the association of parental education, a marker of early life socio-economic position, with body mass index (BMI) (n = 7252, 88% follow-up) and waist-height ratio (n = 5636, 68% follow-up), at 14 years. Results: Parental education of Grade 9 or below, compared to Grade 12 or above, was associated with higher waist-height ratio z-score particularly in girls (0.30, 95% confidence interval (CI) 0.19, 0.41) compared to boys (0.12, 95% CI 0.02, 0.22) (p for sex interaction = 0.02). Lower parental education was associated with greater BMI z-score in adolescents of locally born mothers, but not adolescents of migrant mothers, with no difference by sex. Conclusions: Different social patterning in different markers of adiposity may imply different sociological and biological mediating pathways. A stronger association between low early life socio-economic position and waist-height ratio in adolescent girls may indicate sex-specific influences of SEP related early life exposures on central adiposity.

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  • L L Hui & Gabriel M Leung & C Mary Schooling, 2016. "Social Patterning in Adiposity in Adolescence: Prospective Observations from the Chinese Birth Cohort ‘‘Children of 1997’’," PLOS ONE, Public Library of Science, vol. 11(1), pages 1-10, January.
    • Handle: RePEc:plo:pone00:0146198
    DOI: 10.1371/journal.pone.0146198
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    References listed on IDEAS

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    1. Pauline W Jansen & Fiona K Mensah & Jan M Nicholson & Melissa Wake, 2013. "Family and Neighbourhood Socioeconomic Inequalities in Childhood Trajectories of BMI and Overweight: Longitudinal Study of Australian Children," PLOS ONE, Public Library of Science, vol. 8(7), pages 1-10, July.
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