Association of antidepressant use with obesity risk in pregnant women: a retrospective cohort study

Objective This study evaluated the relationship between treatment for depression and anxiety in pregnancy and the risk of obesity.Design Multivariate logistic regression analysis, nested case control study design.Setting Births occurring 2008–2022 at an outer-suburban, lower socioeconomic maternity...

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Main Authors: Carolyn Breadon, Shalini Arunogiri, Alisa Turbic, Alex Lavale, Ricardo Maldonado, Jayashri Kulkarni
Format: Article
Language:English
Published: Taylor & Francis Group 2025-12-01
Series:Journal of Psychosomatic Obstetrics and Gynecology
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Online Access:https://www.tandfonline.com/doi/10.1080/0167482X.2025.2460636
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author Carolyn Breadon
Shalini Arunogiri
Alisa Turbic
Alex Lavale
Ricardo Maldonado
Jayashri Kulkarni
author_facet Carolyn Breadon
Shalini Arunogiri
Alisa Turbic
Alex Lavale
Ricardo Maldonado
Jayashri Kulkarni
author_sort Carolyn Breadon
collection DOAJ
description Objective This study evaluated the relationship between treatment for depression and anxiety in pregnancy and the risk of obesity.Design Multivariate logistic regression analysis, nested case control study design.Setting Births occurring 2008–2022 at an outer-suburban, lower socioeconomic maternity hospital in Australia. Population: 75,308 eligible births. Main outcome measures: BMI ≥ 30 (obesity), BMI ≥ 35 (severe obesity/obesity class II and III).Results In this analysis, we found an adjusted OR of 1.56 of BMI ≥ 30, p < .000 with CI (1.35–1.80) in women taking antidepressants in pregnancy, OR 1.56 of BMI ≥ 35, p < .000, CI (1.31–1.84). Within this dataset, a cohort of 7559 women with a history or current diagnosis of depression or anxiety were found; adjusted OR of 1.40 of BMI ≥ 30, p < .000, CI (1.22–1.60) in women within this group taking antidepressants. Rates of severe obesity were similar in this cohort, BMI ≥ 35; OR 1.39, p < .000; CI 1.18–1.62).Conclusions These results suggest an increase in rates of obesity in women taking antidepressants in pregnancy not accounted for by other risks for obesity which might accrue from current mental ill-health or other cohort effects such as genetic vulnerability or lifestyle factors. This outcome is important in relation to the care of pregnant women with depression and anxiety. In view of current high rates of prescribing of antidepressants in pregnancy and the postpartum, this research may help inform clinician decision-making for women at risk of obesity in pregnancy.
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spelling doaj-art-98e409320e9f4a449fb6737f2e4bf1cc2025-08-20T02:38:21ZengTaylor & Francis GroupJournal of Psychosomatic Obstetrics and Gynecology0167-482X1743-89422025-12-0146110.1080/0167482X.2025.2460636Association of antidepressant use with obesity risk in pregnant women: a retrospective cohort studyCarolyn Breadon0Shalini Arunogiri1Alisa Turbic2Alex Lavale3Ricardo Maldonado4Jayashri Kulkarni5Consultation Liaison Psychiatry Service, Austin Hospital Melbourne, Heidelberg, AustraliaMonash Addiction Research Centre, Eastern Health Clinical School, Melbourne, AustraliaDepartment of Psychiatry, The University of Melbourne, Parkville, AustraliaMonash University School of Medicine and Health Sciences, Melbourne, AustraliaPower Stats, West Ryde, AustraliaHER Centre Australia, Monash University, Melbourne, AustraliaObjective This study evaluated the relationship between treatment for depression and anxiety in pregnancy and the risk of obesity.Design Multivariate logistic regression analysis, nested case control study design.Setting Births occurring 2008–2022 at an outer-suburban, lower socioeconomic maternity hospital in Australia. Population: 75,308 eligible births. Main outcome measures: BMI ≥ 30 (obesity), BMI ≥ 35 (severe obesity/obesity class II and III).Results In this analysis, we found an adjusted OR of 1.56 of BMI ≥ 30, p < .000 with CI (1.35–1.80) in women taking antidepressants in pregnancy, OR 1.56 of BMI ≥ 35, p < .000, CI (1.31–1.84). Within this dataset, a cohort of 7559 women with a history or current diagnosis of depression or anxiety were found; adjusted OR of 1.40 of BMI ≥ 30, p < .000, CI (1.22–1.60) in women within this group taking antidepressants. Rates of severe obesity were similar in this cohort, BMI ≥ 35; OR 1.39, p < .000; CI 1.18–1.62).Conclusions These results suggest an increase in rates of obesity in women taking antidepressants in pregnancy not accounted for by other risks for obesity which might accrue from current mental ill-health or other cohort effects such as genetic vulnerability or lifestyle factors. This outcome is important in relation to the care of pregnant women with depression and anxiety. In view of current high rates of prescribing of antidepressants in pregnancy and the postpartum, this research may help inform clinician decision-making for women at risk of obesity in pregnancy.https://www.tandfonline.com/doi/10.1080/0167482X.2025.2460636Obesitypregnancydepressionanxietyantidepressant
spellingShingle Carolyn Breadon
Shalini Arunogiri
Alisa Turbic
Alex Lavale
Ricardo Maldonado
Jayashri Kulkarni
Association of antidepressant use with obesity risk in pregnant women: a retrospective cohort study
Journal of Psychosomatic Obstetrics and Gynecology
Obesity
pregnancy
depression
anxiety
antidepressant
title Association of antidepressant use with obesity risk in pregnant women: a retrospective cohort study
title_full Association of antidepressant use with obesity risk in pregnant women: a retrospective cohort study
title_fullStr Association of antidepressant use with obesity risk in pregnant women: a retrospective cohort study
title_full_unstemmed Association of antidepressant use with obesity risk in pregnant women: a retrospective cohort study
title_short Association of antidepressant use with obesity risk in pregnant women: a retrospective cohort study
title_sort association of antidepressant use with obesity risk in pregnant women a retrospective cohort study
topic Obesity
pregnancy
depression
anxiety
antidepressant
url https://www.tandfonline.com/doi/10.1080/0167482X.2025.2460636
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