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Bidirectional association between autoimmune disease and perinatal depression: a nationwide study with sibling comparison
Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden; Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.
Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden; West China Biomedical Big Data Center, West China Hospital, Sichuan University, Chengdu, China.
Department of Global Public Health, Karolinska Institutet, Stockholm, Sweden; Department of Public Health and Caring Sciences, Uppsala University, Uppsala, Sweden.
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2024 (English)In: Molecular Psychiatry, ISSN 1359-4184, E-ISSN 1476-5578, Vol. 29, no 3, p. 602-610Article in journal (Refereed) Published
Abstract [en]

Although major depression, characterized by a pro-inflammatory profile, genetically overlap with autoimmune disease (AD) and the perinatal period involve immune system adaptations and AD symptom alterations, the bidirectional link between perinatal depression (PND) and AD is largely unexplored. Hence, the objective of this study was to investigate the bidirectional association between PND and AD. Using nationwide Swedish population and health registers, we conducted a nested case-control study and a matched cohort study. From 1,347,901 pregnancies during 2001-2013, we included 55,299 incident PND, their unaffected full sisters, and 10 unaffected matched women per PND case. We identified 41 subtypes of AD diagnoses recorded in the registers and compared PND with unaffected population-matched women and full sisters, using multivariable regressions. Women with an AD had a 30% higher risk of subsequent PND (95% CI 1.2-1.5) and women exposed to PND had a 30% higher risk of a subsequent AD (95% CI 1.3-1.4). Comparable associations were found when comparing exposed women with their unaffected sisters (nested case-control OR: 1.3, 95% CI 1.2-1.5, matched cohort HR: 1.3, 95% CI 1.1-1.6), and when studying antepartum and postpartum depression. The bidirectional association was more pronounced among women without psychiatric comorbidities (nested case-control OR: 1.5, 95% CI 1.4-1.6, matched cohort HR: 1.4, 95% CI 1.4-1.5) and strongest for multiple sclerosis (nested case-control OR: 2.0, 95% CI 1.6-2.3, matched cohort HR: 1.8, 95% CI 1.0-3.1). These findings demonstrate a bidirectional association between AD and PND independent of psychiatric comorbidities, suggesting possibly shared biological mechanisms. If future translational science confirms the underlying mechanisms, healthcare providers need to be aware of the increased risk of PND among women with ADs and vice versa.

Place, publisher, year, edition, pages
Springer Nature, 2024. Vol. 29, no 3, p. 602-610
National Category
Public Health, Global Health, Social Medicine and Epidemiology
Identifiers
URN: urn:nbn:se:oru:diva-110634DOI: 10.1038/s41380-023-02351-1ISI: 001138135800001PubMedID: 38191927Scopus ID: 2-s2.0-85181726077OAI: oai:DiVA.org:oru-110634DiVA, id: diva2:1825624
Funder
Karolinska Institute
Note

This study was funded by Karolinska Institutet's Research Foundation Grants (2022-01548) to EB, Forte (2020-00971), the Karolinska Institutet Strategic Research Area in Epidemiology and Biostatistics to DL, the Swedish research council (2020-01003) to DL, and the Icelandic Research Fund (ReMood, grant no: 218274) to UAV. We would like to send our appreciation to Anna Hildenbrand Michelman and Anna Udden for grammatical editing suggestions. Open access funding provided by Karolinska Institute.

Correction: Bidirectional association between autoimmune disease and perinatal depression: a nationwide study with sibling comparison. Mol Psychiatry. Bränn, E., Chen, Y., Song, H. et al. Mol Psychiatry (2024). https://doi.org/10.1038/s41380-024-02438-3

Available from: 2024-01-09 Created: 2024-01-09 Last updated: 2024-06-26Bibliographically approved

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