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Title: Socio-economic status influences the relationship between obesity and antenatal depression: Data from a prospective cohort study
Authors: Molyneaux, E.
Pasupathy, D.
Kenny, L. C.
McCowan, L. M.
North, R. A.
Dekker, G. A.
Walker, J. J.
Baker, Philip N.
Poston, L.
Howard, L. M.
SCOPE consortium
First Published: 26-May-2016
Publisher: Elsevier for International Society for Affective Disorders
Citation: Journal of Affective Disorders, 2016, 202, pp. 124-127
Abstract: BACKGROUND: Obesity has been associated with increased risk of antenatal depression, but little is known about this relationship. This study tested whether socio-economic status (SES) influences the relationship between obesity and antenatal depression. METHODS: Data were taken from the Screening for Pregnancy Endpoints (SCOPE) cohort. BMI was calculated from measured height and weight at 15±1 weeks' gestation. Underweight women were excluded. SES was indicated by self-reported household income (dichotomised around the median: low SES ≤£45,000; high SES >£45,000). Antenatal depression was defined as scoring ≥13 on the Edinburgh Postnatal Depression Scale at both 15±1 and 20±1 weeks' gestation, to identify persistently elevated symptoms of depression. RESULTS: Five thousand five hundred and twenty two women were included in these analyses and 5.5% had persistently elevated antenatal depression symptoms. There was a significant interaction between SES and BMI on the risk of antenatal depression (p=0.042). Among high SES women, obese women had approximately double the odds of antenatal depression than normal weight controls (AOR 2.11, 95%CI 1.16-3.83, p=0.014, adjusted for confounders). Among low SES women there was no association between obesity and antenatal depression. The interaction effect was robust to alternative indicators of SES in sensitivity analyses. LIMITATIONS: 1) Antenatal depression was assessed with a self-reported screening measure; and 2) potential mediators such as stigma and poor body-image could not be examined. CONCLUSIONS: Obesity was only associated with increased risk of antenatal depression among high SES women in this sample. Healthcare professionals should be aware that antenatal depression is more common among low SES women, regardless of BMI category.
DOI Link: 10.1016/j.jad.2016.05.061
ISSN: 0165-0327
eISSN: 1573-2517
Version: Publisher Version
Status: Peer-reviewed
Type: Journal Article
Rights: Copyright © the authors, 2016. This is an open-access article distributed under the terms of the Creative Commons Attribution License ( ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Appears in Collections:Published Articles, College of Medicine, Biological Sciences and Psychology

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