Socioeconomic position across the lifecourse & allostatic load: data from the West of Scotland Twenty-07 cohort study

Robertson, T., Popham, F. and Benzeval, M. (2014) Socioeconomic position across the lifecourse & allostatic load: data from the West of Scotland Twenty-07 cohort study. BMC Public Health, 14(184), (doi:10.1186/1471-2458-14-184)

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Abstract

Background: We examined how socioeconomic position (SEP) across the lifecourse (three critical periods, social mobility and accumulated over time) is associated with allostatic load (a measure of cumulative physiological burden).

Methods: Data are from the West of Scotland Twenty-07 Study, with respondents aged 35 (n = 740), 55 (n = 817) and 75 (n = 483). SEP measures representing childhood, the transition to adulthood and adulthood SEP were used. Allostatic load was produced by summing nine binary biomarker scores (1 = in the highest-risk quartile). Linear regressions were used for each of the lifecourse models; with model fits compared using partial F-tests.

Results: For those aged 35 and 55, higher SEP was associated with lower allostatic load (no association in the 75-year-olds). The accumulation model (more time spent with higher SEP) had the best model fit in those aged 35 (b = −0.50, 95%CI = −0.68, −0.32, P = 0.002) and 55 (b = −0.31, 95%CI = −0.49, −0.12, P <0.001). However, the relative contributions of each life-stage differed, with adulthood SEP less strongly associated with allostatic load.

Conclusions: Long-term, accumulated higher SEP has been shown to be associated with lower allostatic load (less physiological burden). However, the transition to adulthood may represent a particularly sensitive period for SEP to impact on allostatic load.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Popham, Dr Timothy and Benzeval, Dr Michaela and Robertson, Mr Tony
Authors: Robertson, T., Popham, F., and Benzeval, M.
College/School:College of Medical Veterinary and Life Sciences > Institute of Health and Wellbeing > MRC/CSO Unit
College of Medical Veterinary and Life Sciences > Institute of Health and Wellbeing > Mental Health and Wellbeing
Journal Name:BMC Public Health
Publisher:BioMed Central
ISSN:1471-2458
ISSN (Online):1471-2458
Copyright Holders:Copyright © 2014 The Authors
First Published:First published in BMC Public Health 14(184)
Publisher Policy:Reproduced under a Creative Commons License
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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
656621Social Patterning of Health over the LifecourseTimothy PophamMedical Research Council (MRC)MC_UU_12017/7IHW - MRC/CSO SPHU