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Developmental Trajectories of Suicidality in Sexually Diverse and Heterosexual Adolescents: Findings From the Quebec Longitudinal Study of Child Development: Trajectoires développementales de suicidalité chez les adolescents hétérosexuels et de la diversité sexuelle : Résultats de l'Étude longitudinale sur le développement des enfants du Québec.

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Τίτλος: Developmental Trajectories of Suicidality in Sexually Diverse and Heterosexual Adolescents: Findings From the Quebec Longitudinal Study of Child Development: Trajectoires développementales de suicidalité chez les adolescents hétérosexuels et de la diversité sexuelle : Résultats de l'Étude longitudinale sur le développement des enfants du Québec.
Συγγραφείς: MacNeil S; Department of Psychiatry, Faculty of Medicine, McGill University & Douglas Mental Health University Institute, Montreal, Quebec, Canada., Sicotte R; School of Psychoeducation, Faculty of Arts and Science, University of Montreal, Montreal, Quebec, Canada., Davisse-Paturet C; Faculty of Medicine, Sorbonne University, Paris, France., Chartrand E; Research Unit on Children's Psychosocial Adjustment, Ste-Justine Hospital Research Center, University of Montreal, Montreal, Quebec, Canada., Alexander E; Youth Council, Mental Health Commission of Canada, Ottawa, Ontario, Canada., Lecousy M; Youth Council, Mental Health Commission of Canada, Ottawa, Ontario, Canada., Girard A; Research Unit on Children's Psychosocial Adjustment, Ste-Justine Hospital Research Center, University of Montreal, Montreal, Quebec, Canada., Orri M; Department of Psychiatry, Faculty of Medicine, McGill University & Douglas Mental Health University Institute, Montreal, Quebec, Canada., Chadi N; Department of Pediatrics, Faculty of Medicine, University of Montreal, Montreal, Quebec, Canada., Ouellet-Morin I; School of Criminology, Faculty of Arts and Science, University of Montreal, Montreal, Quebec, Canada., Pullen Sansfaçon A; School of Social Work, Faculty of Arts and Science, University of Montreal, Montreal, Quebec, Canada., Iyer SN; Department of Psychiatry, Faculty of Medicine, McGill University & Douglas Mental Health University Institute, Montreal, Quebec, Canada., Castellanos-Ryan N; School of Psychoeducation, Faculty of Arts and Science, University of Montreal, Montreal, Quebec, Canada., Colman I; School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada., Juster RP; Department of Psychiatry and Addiction, Faculty of Medicine, University of Montreal, Montreal, Quebec, Canada., Geoffroy MC; Department of Psychiatry, Faculty of Medicine, McGill University & Douglas Mental Health University Institute, Montreal, Quebec, Canada.
Πηγή: Canadian journal of psychiatry. Revue canadienne de psychiatrie [Can J Psychiatry] 2026 Oct; Vol. 71 (10), pp. 759-769. Date of Electronic Publication: 2026 Apr 15.
Τύπος έκδοσης: Journal Article
Γλώσσα: English
Στοιχεία περιοδικού: Publisher: Sage Country of Publication: United States NLM ID: 7904187 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1497-0015 (Electronic) Linking ISSN: 07067437 NLM ISO Abbreviation: Can J Psychiatry Subsets: MEDLINE
Imprint Name(s): Publication: 2016- : Thousand Oaks, CA : Sage
Original Publication: [Ottawa, Canadian Psychiatric Assn.]
Ιατρικοί όροι (MeSH): Heterosexuality*/statistics & numerical data , Adolescent Development*/physiology , Suicide, Attempted*/statistics & numerical data , Sexual and Gender Minorities*/statistics & numerical data , Suicidal Ideation* , Child Development*, Quebec/epidemiology ; Humans ; Female ; Longitudinal Studies ; Adolescent ; Male ; Young Adult
Περίληψη: IntroductionSexually diverse adolescents report higher suicidality (ideation and attempts) than their heterosexual peers, but information on the onset and course of suicidality from early adolescence to young adulthood among contemporary sexually diverse individuals remains limited. This study traces suicidality trajectories across this critical developmental period, comparing sexually diverse and heterosexual adolescents both overall and by sex assigned at birth.MethodsData was drawn from the Quebec Longitudinal Study of Child Development, an ongoing population-based prospective birth cohort. This study included 1,505 participants who self-reported their sexual attraction at ages 15-17 (2013-2015) and past-year suicidal ideation and attempts using 3-items at ages 13, 15, 17 and 23 (2011-2021) from which a suicidality severity score was derived.Results11.5% of the sample (n = 173, 60.5% female) reported sexually diverse attraction. Growth curve modelling tested the random effect of sexually diverse (vs. heterosexual) attraction on suicidality severity intercept, linear and quadratic latent growth factors. Age-specific contrasts in suicidality severity between sexually diverse and heterosexual adolescents were also examined. Compared to heterosexual adolescents, sexually diverse adolescents showed a steeper increase in suicidality severity from ages 13 to 17, and declining yet persisting disparities from ages 17 to 23. Although developmental trajectories differed across sexually diverse males and females, both experienced greater suicidality severity during adolescence compared with heterosexual peers.DiscussionOur findings point to a developmental trajectory in which sexually diverse adolescents, particularly females assigned at birth, experience elevated suicidality that persists into young adulthood. Targeted and timely interventions during this critical developmental period are essential for suicide prevention.
Competing Interests: Declaration of Conflicting InterestsThe authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
Contributed Indexing: Keywords: adolescence; longitudinal; population-based; sexual diversity; suicidality; suicide; trajectories; young adulthood
Entry Date(s): Date Created: 20260415 Date Completed: 20260917 Latest Revision: 20260917
Update Code: 20260918
PubMed Central ID: PMC13083283
DOI: 10.1177/07067437261442420
PMID: 41983935
Βάση Δεδομένων: MEDLINE
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  Data: Developmental Trajectories of Suicidality in Sexually Diverse and Heterosexual Adolescents: Findings From the Quebec Longitudinal Study of Child Development: Trajectoires développementales de suicidalité chez les adolescents hétérosexuels et de la diversité sexuelle : Résultats de l'Étude longitudinale sur le développement des enfants du Québec.
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  Data: <searchLink fieldCode="AU" term="%22MacNeil+S%22">MacNeil S</searchLink>; Department of Psychiatry, Faculty of Medicine, McGill University & Douglas Mental Health University Institute, Montreal, Quebec, Canada.<br /><searchLink fieldCode="AU" term="%22Sicotte+R%22">Sicotte R</searchLink>; School of Psychoeducation, Faculty of Arts and Science, University of Montreal, Montreal, Quebec, Canada.<br /><searchLink fieldCode="AU" term="%22Davisse-Paturet+C%22">Davisse-Paturet C</searchLink>; Faculty of Medicine, Sorbonne University, Paris, France.<br /><searchLink fieldCode="AU" term="%22Chartrand+E%22">Chartrand E</searchLink>; Research Unit on Children's Psychosocial Adjustment, Ste-Justine Hospital Research Center, University of Montreal, Montreal, Quebec, Canada.<br /><searchLink fieldCode="AU" term="%22Alexander+E%22">Alexander E</searchLink>; Youth Council, Mental Health Commission of Canada, Ottawa, Ontario, Canada.<br /><searchLink fieldCode="AU" term="%22Lecousy+M%22">Lecousy M</searchLink>; Youth Council, Mental Health Commission of Canada, Ottawa, Ontario, Canada.<br /><searchLink fieldCode="AU" term="%22Girard+A%22">Girard A</searchLink>; Research Unit on Children's Psychosocial Adjustment, Ste-Justine Hospital Research Center, University of Montreal, Montreal, Quebec, Canada.<br /><searchLink fieldCode="AU" term="%22Orri+M%22">Orri M</searchLink>; Department of Psychiatry, Faculty of Medicine, McGill University & Douglas Mental Health University Institute, Montreal, Quebec, Canada.<br /><searchLink fieldCode="AU" term="%22Chadi+N%22">Chadi N</searchLink>; Department of Pediatrics, Faculty of Medicine, University of Montreal, Montreal, Quebec, Canada.<br /><searchLink fieldCode="AU" term="%22Ouellet-Morin+I%22">Ouellet-Morin I</searchLink>; School of Criminology, Faculty of Arts and Science, University of Montreal, Montreal, Quebec, Canada.<br /><searchLink fieldCode="AU" term="%22Pullen+Sansfaçon+A%22">Pullen Sansfaçon A</searchLink>; School of Social Work, Faculty of Arts and Science, University of Montreal, Montreal, Quebec, Canada.<br /><searchLink fieldCode="AU" term="%22Iyer+SN%22">Iyer SN</searchLink>; Department of Psychiatry, Faculty of Medicine, McGill University & Douglas Mental Health University Institute, Montreal, Quebec, Canada.<br /><searchLink fieldCode="AU" term="%22Castellanos-Ryan+N%22">Castellanos-Ryan N</searchLink>; School of Psychoeducation, Faculty of Arts and Science, University of Montreal, Montreal, Quebec, Canada.<br /><searchLink fieldCode="AU" term="%22Colman+I%22">Colman I</searchLink>; School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada.<br /><searchLink fieldCode="AU" term="%22Juster+RP%22">Juster RP</searchLink>; Department of Psychiatry and Addiction, Faculty of Medicine, University of Montreal, Montreal, Quebec, Canada.<br /><searchLink fieldCode="AU" term="%22Geoffroy+MC%22">Geoffroy MC</searchLink>; Department of Psychiatry, Faculty of Medicine, McGill University & Douglas Mental Health University Institute, Montreal, Quebec, Canada.
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  Data: <searchLink fieldCode="JN" term="%227904187%22">Canadian journal of psychiatry. Revue canadienne de psychiatrie</searchLink> [Can J Psychiatry] 2026 Oct; Vol. 71 (10), pp. 759-769. <i>Date of Electronic Publication: </i>2026 Apr 15.
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  Data: <i>Publisher: </i><searchLink fieldCode="PB" term="%22Sage%22">Sage </searchLink><i>Country of Publication: </i>United States <i>NLM ID: </i>7904187 <i>Publication Model: </i>Print-Electronic <i>Cited Medium: </i>Internet <i>ISSN: </i>1497-0015 (Electronic) <i>Linking ISSN: </i><searchLink fieldCode="IS" term="%2207067437%22">07067437 </searchLink><i>NLM ISO Abbreviation: </i>Can J Psychiatry <i>Subsets: </i>MEDLINE
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  Data: <searchLink fieldCode="MM" term="%22Heterosexuality%22">Heterosexuality*</searchLink>/<searchLink fieldCode="MM" term="%22Heterosexuality+statistics+%26+numerical+data%22">statistics & numerical data</searchLink> <br /><searchLink fieldCode="MM" term="%22Adolescent+Development%22">Adolescent Development*</searchLink>/<searchLink fieldCode="MM" term="%22Adolescent+Development+physiology%22">physiology</searchLink> <br /><searchLink fieldCode="MM" term="%22Suicide%2C+Attempted%22">Suicide, Attempted*</searchLink>/<searchLink fieldCode="MM" term="%22Suicide%2C+Attempted+statistics+%26+numerical+data%22">statistics & numerical data</searchLink> <br /><searchLink fieldCode="MM" term="%22Sexual+and+Gender+Minorities%22">Sexual and Gender Minorities*</searchLink>/<searchLink fieldCode="MM" term="%22Sexual+and+Gender+Minorities+statistics+%26+numerical+data%22">statistics & numerical data</searchLink> <br /><searchLink fieldCode="MM" term="%22Suicidal+Ideation%22">Suicidal Ideation*</searchLink> <br /><searchLink fieldCode="MM" term="%22Child+Development%22">Child Development*</searchLink><br /><searchLink fieldCode="MH" term="%22Quebec%22">Quebec</searchLink>/<searchLink fieldCode="MH" term="%22Quebec+epidemiology%22">epidemiology</searchLink> ; <searchLink fieldCode="MH" term="%22Humans%22">Humans</searchLink> ; <searchLink fieldCode="MH" term="%22Female%22">Female</searchLink> ; <searchLink fieldCode="MH" term="%22Longitudinal+Studies%22">Longitudinal Studies</searchLink> ; <searchLink fieldCode="MH" term="%22Adolescent%22">Adolescent</searchLink> ; <searchLink fieldCode="MH" term="%22Male%22">Male</searchLink> ; <searchLink fieldCode="MH" term="%22Young+Adult%22">Young Adult</searchLink>
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  Data: IntroductionSexually diverse adolescents report higher suicidality (ideation and attempts) than their heterosexual peers, but information on the onset and course of suicidality from early adolescence to young adulthood among contemporary sexually diverse individuals remains limited. This study traces suicidality trajectories across this critical developmental period, comparing sexually diverse and heterosexual adolescents both overall and by sex assigned at birth.MethodsData was drawn from the Quebec Longitudinal Study of Child Development, an ongoing population-based prospective birth cohort. This study included 1,505 participants who self-reported their sexual attraction at ages 15-17 (2013-2015) and past-year suicidal ideation and attempts using 3-items at ages 13, 15, 17 and 23 (2011-2021) from which a suicidality severity score was derived.Results11.5% of the sample (n = 173, 60.5% female) reported sexually diverse attraction. Growth curve modelling tested the random effect of sexually diverse (vs. heterosexual) attraction on suicidality severity intercept, linear and quadratic latent growth factors. Age-specific contrasts in suicidality severity between sexually diverse and heterosexual adolescents were also examined. Compared to heterosexual adolescents, sexually diverse adolescents showed a steeper increase in suicidality severity from ages 13 to 17, and declining yet persisting disparities from ages 17 to 23. Although developmental trajectories differed across sexually diverse males and females, both experienced greater suicidality severity during adolescence compared with heterosexual peers.DiscussionOur findings point to a developmental trajectory in which sexually diverse adolescents, particularly females assigned at birth, experience elevated suicidality that persists into young adulthood. Targeted and timely interventions during this critical developmental period are essential for suicide prevention.
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  Data: Declaration of Conflicting InterestsThe authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
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  Data: <i>Keywords: </i>adolescence; longitudinal; population-based; sexual diversity; suicidality; suicide; trajectories; young adulthood
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