Transmission of Mental Disorders in Adolescent Peer Networks
Alho, J., Gutvilig, M., Niemi, R., Komulainen, K., Böckerman, P., Webb, R. T., Elovainio, M., & Hakulinen, C. (2024). Transmission of Mental Disorders in Adolescent Peer Networks. JAMA Psychiatry, Early online. https://doi.org/10.1001/jamapsychiatry.2024.1126
Julkaistu sarjassa
JAMA PsychiatryTekijät
Päivämäärä
2024Tekijänoikeudet
© 2024 the Authors
Importance: Previous research indicates that mental disorders may be transmitted from one individual to another within social networks. However, there is a lack of population-based epidemiologic evidence that pertains to the full range of mental disorders.
Objective: To examine whether having classmates with a mental disorder diagnosis in the ninth grade of comprehensive school is associated with later risk of being diagnosed with a mental disorder.
Design, Setting, and Participants: In a population-based registry study, data on all Finnish citizens born between January 1, 1985, and December 31, 1997, whose demographic, health, and school information were linked from nationwide registers were included. Cohort members were followed up from August 1 in the year they completed ninth grade (approximately aged 16 years) until a diagnosis of mental disorder, emigration, death, or December 31, 2019, whichever occurred first. Data analysis was performed from May 15, 2023, to February 8, 2024.
Exposure: The exposure was 1 or more individuals diagnosed with a mental disorder in the same school class in the ninth grade.
Main Outcomes and Measures: Being diagnosed with a mental disorder during follow-up.
Results: Among the 713 809 cohort members (median age at the start of follow-up, 16.1 [IQR, 15.9-16.4] years; 50.4% were males), 47 433 had a mental disorder diagnosis by the ninth grade. Of the remaining 666 376 cohort members, 167 227 persons (25.1%) received a mental disorder diagnosis during follow-up (7.3 million person-years). A dose-response association was found, with no significant increase in later risk of 1 diagnosed classmate (HR, 1.01; 95% CI, 1.00-1.02), but a 5% increase with more than 1 diagnosed classmate (HR, 1.05; 95% CI, 1.04-1.06). The risk was not proportional over time but was highest during the first year of follow-up, showing a 9% increase for 1 diagnosed classmate (HR, 1.09; 95% CI, 1.04-1.14), and an 18% increase for more than 1 diagnosed classmate (HR, 1.18; 95% CI, 1.13-1.24). Of the examined mental disorders, the risk was greatest for mood, anxiety, and eating disorders. Increased risk was observed after adjusting for an array of parental, school-level, and area-level confounders.
Conclusions and Relevance: The findings of this study suggest that mental disorders might be transmitted within adolescent peer networks. More research is required to elucidate the mechanisms underlying the possible transmission of mental disorders.
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Julkaisija
American Medical AssociationISSN Hae Julkaisufoorumista
2168-622XAsiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/215920941
Metadata
Näytä kaikki kuvailutiedotKokoelmat
- Kauppakorkeakoulu [1330]
Lisätietoja rahoituksesta
This study was funded by the European Union (ERC, MENTALNET, 101040247) and the Academy of Finland (354237 to Dr Hakulinen; 339390 to Dr Elovainio). Dr Webb is funded by the National Institute for Health and Social Care Research (NIHR) Manchester Biomedical Research Centre (NIHR203308) and by the NIHR Greater Manchester Patient Safety Research Collaboration (NIHR204295).Lisenssi
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