{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,12]],"date-time":"2026-09-12T09:07:54Z","timestamp":1789204074257,"version":"build-2803163510"},"reference-count":29,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2025,7,5]],"date-time":"2025-07-05T00:00:00Z","timestamp":1751673600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2025,7,5]],"date-time":"2025-07-05T00:00:00Z","timestamp":1751673600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100000156","name":"Fonds de Recherche du Qu\u00e9bec - Sant\u00e9","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100000156","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000024","name":"Canadian Institutes of Health Research","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100000024","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Stress and Health"],"published-print":{"date-parts":[[2025,8]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>Adolescent mental health was a major problem during the COVID\u201019 pandemic. We determined the extent to which adolescents with a history of adversity were at risk of mental health hospitalization during the pandemic. We conducted a longitudinal cohort study of 303,378 adolescents from Quebec, Canada, who were age 10\u201314\u00a0years at the start of the pandemic. The main exposure was early life adversity, which included childhood adversity as well as maternal history of adversity or mental illness. The main outcome was hospitalization for a psychiatric disorder, substance use disorder, or suicide attempt between March 2020 and March 2023. We used Cox regression models to compute adjusted hazard ratios (HR) and 95% confidence intervals (CI) for the association of adversity with risk of mental health admission during the pandemic. Adolescents with a history of childhood adversity were 6\u20139 times more likely to be admitted for a psychiatric disorder (HR 5.79, 95% CI 4.82\u20136.95), substance use disorder (HR 8.89, 95% CI 6.36\u201312.43), or suicide attempt (HR 6.93, 95% CI 4.85\u20139.90) during the pandemic, compared with other adolescents. Adolescents whose mothers experienced adversity or whose mothers had mental illness were 2\u20136 times more likely to be admitted for mental disorders. Associations were present for both sexes, although adversity was particularly associated with substance use disorders among males. Having a history of childhood or maternal adversity was a strong risk factor for mental health hospitalization among adolescents during the pandemic.<\/jats:p>","DOI":"10.1002\/smi.70071","type":"journal-article","created":{"date-parts":[[2025,7,5]],"date-time":"2025-07-05T13:54:02Z","timestamp":1751723642000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Adversity and Risk of Adolescent Mental Health Admission During COVID\u201019"],"prefix":"10.1002","volume":"41","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2412-0459","authenticated-orcid":false,"given":"Nathalie","family":"Auger","sequence":"first","affiliation":[{"name":"University of Montreal Hospital Research Centre  Montreal Canada"},{"name":"Institut national de sant\u00e9 publique du Qu\u00e9bec  Montreal Canada"},{"name":"Department of Social and Preventive Medicine School of Public Health University of Montreal  Montreal Canada"},{"name":"Department of Epidemiology, Biostatistics and Occupational Health McGill University  Montreal Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mayaline","family":"Youssef","sequence":"additional","affiliation":[{"name":"Department of Social and Preventive Medicine School of Public Health University of Montreal  Montreal Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Aimina","family":"Ayoub","sequence":"additional","affiliation":[{"name":"University of Montreal Hospital Research Centre  Montreal Canada"},{"name":"Institut national de sant\u00e9 publique du Qu\u00e9bec  Montreal Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mimi","family":"Isra\u00ebl","sequence":"additional","affiliation":[{"name":"Department of Psychiatry McGill University  Montreal 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