Social Circumstances and Education: Life Course Origins of Social Inequalities in Metabolic Risk in a Prospective National Birth Cohort
Claudia Langenberg, MD,
Diana Kuh, PhD,
Michael E.J. Wadsworth, PhD,
Eric Brunner, PhD and
Rebecca Hardy, PhD
Claudia Langenberg and Eric Brunner are with the International Centre for Health and Society, Department of Epidemiology and Public Health, University College London, London, England. Diana Kuh, Michael E.J. Wadsworth, and Rebecca Hardy are with the Medical Research Council National Survey of Health and Development, Department of Epidemiology and Public Health, University College London.
Correspondence: Requests for reprints should be sent to Claudia Langenberg, MD, Department of Epidemiology and Public Health, University College London, 1-19 Torrington Pl, London WC1E 6BT, United Kingdom (e-mail: c.langenberg{at}ucl.ac.uk).
Objectives. We investigated the relative importance of educationand childhood and adult social class in the risk of metabolicsyndrome.
Methods. We conducted a prospective birth cohort study of 1311men and 1318 women aged 53 years in 1999, when metabolic syndromecomponents were measured. Logistic regression analyses wereused to calculate relative index of inequality estimates.
Results. Relative to men and women at the highest educationlevels, men (odds ratio [OR]=2.0; 95% confidence interval [CI]=1.2,3.2) and women (OR=2.7; 95% CI=1.5, 4.6) with the least educationwere at twice the risk or more of having the metabolic syndrome.Adjustment for childhood and adult social class strengthenedthis result among men and weakened it among women. Childhoodsocial class was independently associated with the metabolicsyndrome in women (OR=2.0; 95% CI=1.1, 3.6) but not in men (OR=1.1;95% CI= 0.7, 1.8). Associations between adult social class andthe metabolic syndrome or its components were largely accountedfor by childhood socioeconomic measures.
Conclusions. Educational differences should be considered inthe design of interventions aimed at reducing the burden ofthe metabolic syndrome in socially disadvantaged groups.
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