Cyril Boonmann
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Cyril Boonmann has a total of 63 co-authors. Here are the top co-authors by number of shared publications:
- David Bürgin
Child and Adolescent Psychiatric Research Department, University Psychiatric Clinics Basel (UPK), University of Basel, Basel, Switzerland
15 shared publications - Delfine D'HUart
Department of Child and Adolescent Psychiatric Research, Psychiatric University Hospitals Basel, Switzerland; Department of Clinical Psychology and Translational Psychotherapy Research, University of Basel, Basel, Switzerland
11 shared publications - Marc Schmid
Child and Adolescent Psychiatric Research Department, University Psychiatric Clinics Basel (UPK), University of Basel, Basel, Switzerland
10 shared publications - Süheyla Seker
Stockholm University
9 shared publications - Klaus Schmeck
Universität Basel
8 shared publications Marc Schmid
8 shared publications
Latest Publications
- Open Access
- 2 September 2026
- Published by Taylor & Francis in European Journal of Psychotraumatology
- Vol. 17 (1)
Associations of childhood maltreatment types and timing with oxidative stress in formerly out-of-home placed young adults
- 2 September 2026
- Published by Taylor & Francis in European Journal of Psychotraumatology
- Vol. 17 (1)
Open AccessAssociations of childhood maltreatment types and timing with oxidative stress in formerly out-of-home placed young adults
- Open Access
- 5 June 2026
- Published by Elsevier in Psychiatry Research
- Vol. 364, 117261
Long-term stability of suicidal ideation among young adults residential care leavers: a prospective 10-year study
- 5 June 2026
- Published by Elsevier in Psychiatry Research
- Vol. 364, 117261
Open AccessLong-term stability of suicidal ideation among young adults residential care leavers: a prospective 10-year study
- Open Access
- 22 May 2026
- Published by Springer Nature in European Child & Adolescent Psychiatry
- Vol. 35 (9) , 2911-2924
Redox dysregulation, inflammation and mental health in adults with high risk of childhood maltreatment
Childhood maltreatment (CM) increases the risk of lifelong mental illness, yet the underlying biochemical mechanisms remain unclear. Oxidative stress (OS), alongside inflammation, may contribute to this link. This study examined whether OS mediates the link between CM and mental health in a highly vulnerable group of formerly out-of-home placed young adults and explored associations between OS and inflammatory markers. Data were collected from 131 participants (31% women, M age = 26.29 ± 3.5 years) with histories of youth residential care. CM was assessed using the Childhood Trauma Questionnaire (CTQ), and mental health via the Achenbach System of Empirically Based Assessment (ASEBA). Biomarkers of OS (Superoxide Dismutase [SOD], Glutathione Peroxidase/Glutathione Reductase ratio [GPx/GRed]) and inflammation (Interleukin-1 Receptor Antagonist [IL-1RA], Interleukin-6 [IL-6], Interleukin-10 [IL-10], C-Reactive Protein [CRP], Tumor Necrosis Factor [TNF𝛼]) were analyzed. Multiple regression models examined associations among CM, OS, inflammation, and mental health, adjusting for covariates. Greater CM exposure was associated with poorer mental health ( b = 0.34, p < .001). Initial analyses indicated that GPx/GRed ( b = 0.20, p = .04), —but not SOD— was related to CM, particularly emotional abuse ( b = 0.21, p = .03). However, this association did not remain significant after adjusting for medication use, suggesting that medication may confound links between CM and redox biology. TNF𝛼 predicted current mental health problems ( b = 0.22, p = .02), and OS and inflammatory markers were significantly interrelated. Neither OS nor inflammation mediated the CM–mental health relationship. These findings highlight a complex interplay between CM, OS, and inflammation in young adults with histories of residential care. They underscore the importance of considering medication effects when studying redox mechanisms and indicate that further research is needed to clarify the biological pathways linking CM to long-term mental health outcomes.
- 22 May 2026
- Published by Springer Nature in European Child & Adolescent Psychiatry
- Vol. 35 (9) , 2911-2924
Open AccessRedox dysregulation, inflammation and mental health in adults with high risk of childhood maltreatment
Childhood maltreatment (CM) increases the risk of lifelong mental illness, yet the underlying biochemical mechanisms remain unclear. Oxidative stress (OS), alongside inflammation, may contribute to this link. This study examined whether OS mediates the link between CM and mental health in a highly vulnerable group of formerly out-of-home placed young adults and explored associations between OS and inflammatory markers. Data were collected from 131 participants (31% women, M age = 26.29 ± 3.5 years) with histories of youth residential care. CM was assessed using the Childhood Trauma Questionnaire (CTQ), and mental health via the Achenbach System of Empirically Based Assessment (ASEBA). Biomarkers of OS (Superoxide Dismutase [SOD], Glutathione Peroxidase/Glutathione Reductase ratio [GPx/GRed]) and inflammation (Interleukin-1 Receptor Antagonist [IL-1RA], Interleukin-6 [IL-6], Interleukin-10 [IL-10], C-Reactive Protein [CRP], Tumor Necrosis Factor [TNF𝛼]) were analyzed. Multiple regression models examined associations among CM, OS, inflammation, and mental health, adjusting for covariates. Greater CM exposure was associated with poorer mental health ( b = 0.34, p < .001). Initial analyses indicated that GPx/GRed ( b = 0.20, p = .04), —but not SOD— was related to CM, particularly emotional abuse ( b = 0.21, p = .03). However, this association did not remain significant after adjusting for medication use, suggesting that medication may confound links between CM and redox biology. TNF𝛼 predicted current mental health problems ( b = 0.22, p = .02), and OS and inflammatory markers were significantly interrelated. Neither OS nor inflammation mediated the CM–mental health relationship. These findings highlight a complex interplay between CM, OS, and inflammation in young adults with histories of residential care. They underscore the importance of considering medication effects when studying redox mechanisms and indicate that further research is needed to clarify the biological pathways linking CM to long-term mental health outcomes.
- 1 April 2026
- Published by Hogrefe Publishing Group in Kindheit und Entwicklung
- Vol. 35 (2) , 112-129
Belastende Kindheitserfahrungen und potenziell traumatische Lebensereignisse bei ehemals fremdplatzierten jungen Erwachsenen
Zusammenfassung: Theoretischer Hintergrund: Fremdplatzierte Kinder und Jugendliche akkumulieren verschiedene belastende Kindheitserfahrungen und potenziell traumatische Lebensereignisse (PTEs). Fragestellung: In der vorliegenden Studie wurden die Prävalenz, Kumulation und Koinzidenz sowie Geschlechtsunterschiede belastender Kindheitserfahrungen und PTEs bei ehemals fremdplatzierten jungen Erwachsenen untersucht. Methode: 211 junge Erwachsene ( M Alter =25.9; 31.8 % Frauen) aus einer schweizweiten Kohortenstudie wurden mit Hilfe eines umfassenden psychometrischen Fragebogens zu belastenden Kindheitserfahrungen (KERF) und zu PTEs (LEC-R) befragt. Ergebnisse: Durchschnittlich wurden 3.0 unterschiedliche Arten belastender Kindheitserfahrungen und 4.5 unterschiedliche PTEs berichtet. Häufigste Formen waren das Erleben emotionaler Vernachlässigung (65.8 %) sowie das Erleben oder Bezeugen physischer Übergriffe (63.0 %). Frauen erlebten signifikant mehr belastende Kindheitserfahrungen, hingegen fanden sich keine Unterschiede bezüglich der Anzahl berichteter PTEs. Bestimmte belastende Erfahrungen traten häufig gemeinsam auf, zum Beispiel in Form von systemübergreifender Gewaltexposition in und außerhalb von Familien, als auch das Erleben von Unfällen und das Erleben von physischer Gewalt. Diskussion und Schlussfolgerung: Die Ergebnisse verdeutlichen die hohe Kumulation und Verflechtung von belastenden Erfahrungen und unterstreichen die Notwendigkeit früher und anhaltender Präventions- und Interventionsmaßnahmen.
- 1 April 2026
- Published by Hogrefe Publishing Group in Kindheit und Entwicklung
- Vol. 35 (2) , 112-129
Belastende Kindheitserfahrungen und potenziell traumatische Lebensereignisse bei ehemals fremdplatzierten jungen Erwachsenen
Zusammenfassung: Theoretischer Hintergrund: Fremdplatzierte Kinder und Jugendliche akkumulieren verschiedene belastende Kindheitserfahrungen und potenziell traumatische Lebensereignisse (PTEs). Fragestellung: In der vorliegenden Studie wurden die Prävalenz, Kumulation und Koinzidenz sowie Geschlechtsunterschiede belastender Kindheitserfahrungen und PTEs bei ehemals fremdplatzierten jungen Erwachsenen untersucht. Methode: 211 junge Erwachsene ( M Alter =25.9; 31.8 % Frauen) aus einer schweizweiten Kohortenstudie wurden mit Hilfe eines umfassenden psychometrischen Fragebogens zu belastenden Kindheitserfahrungen (KERF) und zu PTEs (LEC-R) befragt. Ergebnisse: Durchschnittlich wurden 3.0 unterschiedliche Arten belastender Kindheitserfahrungen und 4.5 unterschiedliche PTEs berichtet. Häufigste Formen waren das Erleben emotionaler Vernachlässigung (65.8 %) sowie das Erleben oder Bezeugen physischer Übergriffe (63.0 %). Frauen erlebten signifikant mehr belastende Kindheitserfahrungen, hingegen fanden sich keine Unterschiede bezüglich der Anzahl berichteter PTEs. Bestimmte belastende Erfahrungen traten häufig gemeinsam auf, zum Beispiel in Form von systemübergreifender Gewaltexposition in und außerhalb von Familien, als auch das Erleben von Unfällen und das Erleben von physischer Gewalt. Diskussion und Schlussfolgerung: Die Ergebnisse verdeutlichen die hohe Kumulation und Verflechtung von belastenden Erfahrungen und unterstreichen die Notwendigkeit früher und anhaltender Präventions- und Interventionsmaßnahmen.
- Open Access
- 26 January 2026
- Published by Center for Open Science in PsyArXiv
Differential effects of childhood maltreatment types and timing on psychopathology in formerly out-of-home placed young adults
Childhood maltreatment (CM) increases the risk of psychopathology. Besides CM types and severity, the timing of exposure is an important modulating factor in this association, as childhood and adolescence comprise sensitive developmental periods for brain maturation and socio-emotional development. Nevertheless, previously reported associations between the severity of subtypes and timing of CM and psychopathology have been heterogeneous and have hardly considered vulnerable groups broadly exposed to CM, such as out-of-home-placed youth. Thus, we investigated the association between CM types and timing and psychopathology in a sample of formerly out-of-home placed young adults (N = 185; 32% women, age mean = 26.38, SD = 3.49 years). CM was assessed using the Maltreatment of Abuse Chronology of Exposure Scale and general, internalizing and, externalizing problems were assessed using the Achenbach System of Empirically Based Assessment. We employed conditional random forest regression to estimate the importance of CM types (abuse, neglect, peer victimization, and sexual abuse), timings (ages 3–18) as well as CM severity, multiplicity, and duration on adult general, internalizing, and externalizing problems. We validated the results using diagnoses of mental disorders assessed in clinical interviews, which were classified under general, internalizing, and externalizing clusters based on the Hierarchical Taxonomy of Psychopathology model. We found that CM severity and multiplicity were stronger predictors of internalizing problems than timing-specific effects of CM types. Abuse in early childhood and peer violence in late adolescence were stronger predictors of externalizing problems compared to global CM measures. Our findings highlight the importance of considering CM type and timing when testing CM-associated risks for psychopathology. This might further be valuable in therapeutic settings to guide maltreatment-informed interventions. Reducing violent caregiving environments in early childhood and preventing peer victimization in adolescence may be especially important in counteracting CM-associated risks of externalizing behaviors.
- 26 January 2026
- Published by Center for Open Science in PsyArXiv
Open AccessDifferential effects of childhood maltreatment types and timing on psychopathology in formerly out-of-home placed young adults
Childhood maltreatment (CM) increases the risk of psychopathology. Besides CM types and severity, the timing of exposure is an important modulating factor in this association, as childhood and adolescence comprise sensitive developmental periods for brain maturation and socio-emotional development. Nevertheless, previously reported associations between the severity of subtypes and timing of CM and psychopathology have been heterogeneous and have hardly considered vulnerable groups broadly exposed to CM, such as out-of-home-placed youth. Thus, we investigated the association between CM types and timing and psychopathology in a sample of formerly out-of-home placed young adults (N = 185; 32% women, age mean = 26.38, SD = 3.49 years). CM was assessed using the Maltreatment of Abuse Chronology of Exposure Scale and general, internalizing and, externalizing problems were assessed using the Achenbach System of Empirically Based Assessment. We employed conditional random forest regression to estimate the importance of CM types (abuse, neglect, peer victimization, and sexual abuse), timings (ages 3–18) as well as CM severity, multiplicity, and duration on adult general, internalizing, and externalizing problems. We validated the results using diagnoses of mental disorders assessed in clinical interviews, which were classified under general, internalizing, and externalizing clusters based on the Hierarchical Taxonomy of Psychopathology model. We found that CM severity and multiplicity were stronger predictors of internalizing problems than timing-specific effects of CM types. Abuse in early childhood and peer violence in late adolescence were stronger predictors of externalizing problems compared to global CM measures. Our findings highlight the importance of considering CM type and timing when testing CM-associated risks for psychopathology. This might further be valuable in therapeutic settings to guide maltreatment-informed interventions. Reducing violent caregiving environments in early childhood and preventing peer victimization in adolescence may be especially important in counteracting CM-associated risks of externalizing behaviors.
- Open Access
- 23 October 2025
- Published by Royal College of Psychiatrists in European Psychiatry
- Vol. 68 (1) , 1-30
Differential effects of childhood maltreatment types and timing on psychopathology in formerly out-of-home placed young adults
Background: Childhood maltreatment (CM) increases the risk for psychopathology and CM type, severity and timing are considered important modulating factors in this relationship. However, reported associations are heterogeneous and hardly considered vulnerable groups broadly exposed to CM. Methods: We investigated the association between CM types and timing and psychopathology in formerly out-of-home placed young adults ( N = 185; 32% women, age mean = 26.38 years, SD = 3.49). CM was assessed using the Maltreatment and Abuse Chronology of Exposure Scale. Conditional random forest regression was used to estimate the importance of CM types (abuse, neglect, peer victimization, and sexual abuse), timing (ages 3–18), and global measures (severity, multiplicity, and duration) on adult general, internalizing, and externalizing problems (Achenbach System of Empirically Based Assessment). We validated the results using diagnoses of mental disorders clustered with the Hierarchical Taxonomy of Psychopathology model. Results: Global CM measures were stronger predictors of internalizing problems than CM type and timing. Abuse in early childhood was a stronger predictor of externalizing problems compared to global CM measures. Conclusions: Considering CM type and timing might be valuable to guide maltreatment-informed interventions in therapeutic settings.
- 23 October 2025
- Published by Royal College of Psychiatrists in European Psychiatry
- Vol. 68 (1) , 1-30
Open AccessDifferential effects of childhood maltreatment types and timing on psychopathology in formerly out-of-home placed young adults
Background: Childhood maltreatment (CM) increases the risk for psychopathology and CM type, severity and timing are considered important modulating factors in this relationship. However, reported associations are heterogeneous and hardly considered vulnerable groups broadly exposed to CM. Methods: We investigated the association between CM types and timing and psychopathology in formerly out-of-home placed young adults ( N = 185; 32% women, age mean = 26.38 years, SD = 3.49). CM was assessed using the Maltreatment and Abuse Chronology of Exposure Scale. Conditional random forest regression was used to estimate the importance of CM types (abuse, neglect, peer victimization, and sexual abuse), timing (ages 3–18), and global measures (severity, multiplicity, and duration) on adult general, internalizing, and externalizing problems (Achenbach System of Empirically Based Assessment). We validated the results using diagnoses of mental disorders clustered with the Hierarchical Taxonomy of Psychopathology model. Results: Global CM measures were stronger predictors of internalizing problems than CM type and timing. Abuse in early childhood was a stronger predictor of externalizing problems compared to global CM measures. Conclusions: Considering CM type and timing might be valuable to guide maltreatment-informed interventions in therapeutic settings.
- Open Access
- 1 May 2025
- Published by Hogrefe Publishing Group in Zeitschrift für Kinder- und Jugendpsychiatrie und Psychotherapie
- Vol. 53 (3) , 139-154
Die Prävalenz psychischer Störungen von Care Leavern
Zusammenfassung: Fragestellung: Ehemalig fremdplatzierte junge Erwachsene (Care Leaver) waren in ihrer Kindheit einer Vielzahl psychosozialer Belastungsfaktoren ausgesetzt. Im deutschsprachigen Raum ist bisher wenig darüber bekannt, wie hoch die Prävalenz psychischer Störungen in dieser Population ist. Das Hauptziel dieses Beitrages ist es, die Prävalenzen psychischer Störungen bei Care Leavern zu beschreiben und Implikationen für Versorgungssysteme zu diskutieren. Methodik: Die psychischen Störungen, inklusive Persönlichkeitsstörungen, wurden anhand des Strukturierten Klinischen Interviews bei 175 Schweizer Care Leavern (Durchschnittsalter = 26.53 Jahre, 32.00 % Frauen) erfasst. Deskriptive Informationen wurden in absoluten und relativen Häufigkeiten präsentiert und Zusammenhänge wurden anhand t-Tests und χ2-Tests berechnet. Ergebnisse: 58.29 % der Teilnehmenden erfüllten die Diagnosekriterien für mindestens eine psychische Störung, wobei die Substanzkonsumstörungen (37.71 %), Persönlichkeitsstörungen (35.43 %) und die Aufmerksamkeitsdefizit-/Hyperaktivitätsstörung (19.43 %) die häufigsten Diagnosen waren. Frauen zeigten häufiger Angststörungen sowie Cluster-C-Persönlichkeitsstörungen, während Männer häufiger eine Alkoholkonsumstörung aufwiesen. Schlussfolgerungen: Ungefähr die Hälfte der Schweizer Care Leaver erfüllt die Diagnosekriterien für mindestens eine psychische Störung. Das junge Erwachsenenalter stellt für Care Leaver – ähnlich wie für die Gleichaltrigen aus der Allgemeinbevölkerung – eine sensible Phase für psychische Störungen dar. Dies stellt sozialpädagogische und psychiatrische Versorgungssysteme vor die Herausforderung, das Angebot für psychisch belastete junge Menschen entlang der Transition ins Erwachsenenalter weiter präventiv zu gestalten.
- 1 May 2025
- Published by Hogrefe Publishing Group in Zeitschrift für Kinder- und Jugendpsychiatrie und Psychotherapie
- Vol. 53 (3) , 139-154
Open AccessDie Prävalenz psychischer Störungen von Care Leavern
Zusammenfassung: Fragestellung: Ehemalig fremdplatzierte junge Erwachsene (Care Leaver) waren in ihrer Kindheit einer Vielzahl psychosozialer Belastungsfaktoren ausgesetzt. Im deutschsprachigen Raum ist bisher wenig darüber bekannt, wie hoch die Prävalenz psychischer Störungen in dieser Population ist. Das Hauptziel dieses Beitrages ist es, die Prävalenzen psychischer Störungen bei Care Leavern zu beschreiben und Implikationen für Versorgungssysteme zu diskutieren. Methodik: Die psychischen Störungen, inklusive Persönlichkeitsstörungen, wurden anhand des Strukturierten Klinischen Interviews bei 175 Schweizer Care Leavern (Durchschnittsalter = 26.53 Jahre, 32.00 % Frauen) erfasst. Deskriptive Informationen wurden in absoluten und relativen Häufigkeiten präsentiert und Zusammenhänge wurden anhand t-Tests und χ2-Tests berechnet. Ergebnisse: 58.29 % der Teilnehmenden erfüllten die Diagnosekriterien für mindestens eine psychische Störung, wobei die Substanzkonsumstörungen (37.71 %), Persönlichkeitsstörungen (35.43 %) und die Aufmerksamkeitsdefizit-/Hyperaktivitätsstörung (19.43 %) die häufigsten Diagnosen waren. Frauen zeigten häufiger Angststörungen sowie Cluster-C-Persönlichkeitsstörungen, während Männer häufiger eine Alkoholkonsumstörung aufwiesen. Schlussfolgerungen: Ungefähr die Hälfte der Schweizer Care Leaver erfüllt die Diagnosekriterien für mindestens eine psychische Störung. Das junge Erwachsenenalter stellt für Care Leaver – ähnlich wie für die Gleichaltrigen aus der Allgemeinbevölkerung – eine sensible Phase für psychische Störungen dar. Dies stellt sozialpädagogische und psychiatrische Versorgungssysteme vor die Herausforderung, das Angebot für psychisch belastete junge Menschen entlang der Transition ins Erwachsenenalter weiter präventiv zu gestalten.
- Open Access
- 28 April 2025
- Published by Royal College of Psychiatrists in European Psychiatry
- Vol. 68 (1) , e52
Mental disorders into adulthood among adolescents placed in residential care: A prospective 10-year follow-up study – CORRIGENDUM
- 28 April 2025
- Published by Royal College of Psychiatrists in European Psychiatry
- Vol. 68 (1) , e52
Open AccessMental disorders into adulthood among adolescents placed in residential care: A prospective 10-year follow-up study – CORRIGENDUM
- Open Access
- 19 February 2025
- Published by Elsevier in Child Abuse & Neglect
- Vol. 163, 107317
Psychological resilience and childhood maltreatment: The role of self-efficacy, personality functioning and social support in young adult residential care leavers
- 19 February 2025
- Published by Elsevier in Child Abuse & Neglect
- Vol. 163, 107317
Open AccessPsychological resilience and childhood maltreatment: The role of self-efficacy, personality functioning and social support in young adult residential care leavers
- Open Access
- 25 November 2024
- Published by Springer Nature in Child and Adolescent Psychiatry and Mental Health
- Vol. 18 (1) , 1-3
Correction: Forensic child & adolescent psychiatry and psychology in Europe
- 25 November 2024
- Published by Springer Nature in Child and Adolescent Psychiatry and Mental Health
- Vol. 18 (1) , 1-3
Open AccessCorrection: Forensic child & adolescent psychiatry and psychology in Europe