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Researcher
Gwendolyn Portzky
Profile
Projects
Publications
Activities
Awards & Distinctions
69
Results
2025
The Insight Study: A Case–Control Psychological Autopsy Study Examining Factors Associated With Suicide in Middle‐Aged People
Eva De Jaegere
Pauline Stas
Cornelis Van Heeringen
Renate van Landschoot
Ine Rotsaert
Kurt Audenaert
Gwendolyn Portzky
U
Journal Article
in
Suicide and Life-Threatening Behavior
2025
2024
Assessing a suicide prevention helpline’s impact on caller crisis level and suicidality
Kirsten Pauwels
Eva De Jaegere
Patrick Vanderreydt
Silke Aerts
Eva Vande Gaer
Gwendolyn Portzky
A1
Journal Article
in
ARCHIVES OF SUICIDE RESEARCH
2024
Effects of a serious game for adolescent mental health on cognitive vulnerability : pilot usability study
Eva De Jaegere
Cornelis Van Heeringen
Peter Emmery
Gijs Mommerency
Gwendolyn Portzky
A1
Journal Article
in
JMIR SERIOUS GAMES
2024
Evaluation of an online suicide prevention campaign targeting men
Pauline Stas
Eva De Jaegere
Cornelis Van Heeringen
Anne Ballon
Gwendolyn Portzky
A1
Journal Article
in
SUICIDE AND LIFE-THREATENING BEHAVIOR
2024
Mindfulness-based cognitive therapy for individuals who are suicidal : a randomized controlled trial
Eva De Jaegere
Eva Dumon
Cornelis Van Heeringen
Renate van Landschoot
Pauline Stas
Gwendolyn Portzky
A1
Journal Article
in
ARCHIVES OF SUICIDE RESEARCH
2024
Suicide risk, related factors and the impact of COVID-19 amongst suicide prevention helpline callers : a network analysis
Pauline Stas
Kristof Hoorelbeke
Eva De Jaegere
Kirsten Pauwels
Gwendolyn Portzky
A1
Journal Article
in
JOURNAL OF AFFECTIVE DISORDERS
2024
2023
'I don't feel at home in this world' : sexual and gender minority emerging adults' self-perceived links between their suicidal thoughts and sexual orientation or gender identity
Diana van Bergen
Eva Dumon
Luis A. Parra
Joz Motmans
Lesley C. Biedermann
Renske Gilissen
Gwendolyn Portzky
A1
Journal Article
in
CANADIAN JOURNAL OF PSYCHIATRY-REVUE CANADIENNE DE PSYCHIATRIE
2023
Future‐oriented group training for suicidal individuals : a randomized controlled trial
Eva De Jaegere
Pauline Stas
Cornelis Van Heeringen
Eva Dumon
Renate van Landschoot
Gwendolyn Portzky
A1
Journal Article
in
SUICIDE AND LIFE-THREATENING BEHAVIOR
2023
Investigating the relation between suicide ideation and attempts in transgender adolescents and social support, life satisfaction and coping skills
Gaia Van Cauwenberg
Eva Dumon
Gwendolyn Portzky
Joz Motmans
C3
Conference
2023
Suicide prevention in the digital age : exploring the potential and effectiveness of digital interventions
Eva De Jaegere
Gwendolyn Portzky
Cornelis Van Heeringen
Dissertation
2023
The effects of internet-based cognitive behavioral therapy for suicidal ideation or behaviors on depression, anxiety, and hopelessness in individuals with suicidal ideation : systematic review and meta-analysis of individual participant data
Lasse B Sander
Marie Beisemann
Philipp Doebler
Hannah Moon Micklitz
Ad Kerkhof
Pim Cuijpers
Philip Batterham
Alison Calear
Helen Christensen
Eva De Jaegere
et al.
A1
Journal Article
in
JOURNAL OF MEDICAL INTERNET RESEARCH
2023
2022
Digital cognitive–behavioural therapy to reduce suicidal ideation and behaviours : a systematic review and meta-analysis of individual participant data
Rebekka Büscher
Marie Beisemann
Philipp Doebler
Hannah M Micklitz
Ad Kerkhof
Pim Cuijpers
Philip J Batterham
Alison L Calear
Helen Christensen
Eva De Jaegere
et al.
A1
Journal Article
in
EVIDENCE-BASED MENTAL HEALTH
2022
Moderating role of coping in the association between minority stress and suicidal ideation and suicide attempts among sexual and gender minority young adults
Jennifer de Lange
Laura Baams
Henny Bos
Roel Bosker
Eva Dumon
Gwendolyn Portzky
Jo Robinson
Diana van Bergen
A1
Journal Article
in
SUICIDE AND LIFE-THREATENING BEHAVIOR
2022
Suicide numbers during the first 9-15 months of the COVID-19 pandemic compared with pre-existing trends : an interrupted time series analysis in 33 countries
Jane Pirkis
David Gunnell
Sangsoo Shin
Marcos Del Pozo-Banos
Vikas Arya
Pablo Analuisa Aguilar
Louis Appleby
S. M. Yasir Arafat
Ella Arensman
Jose Luis Ayuso-Mateos
et al.
A1
Journal Article
in
ECLINICALMEDICINE
2022
Suïcidaal gedrag in Belgische gevangenissen : overzicht en geïntegreerd preventiemodel
Louis Favril
Kurt Audenaert
Gwendolyn Portzky
Freya Vander Laenen
A2
Journal Article
in
TIJDSCHRIFT VOOR PSYCHIATRIE
2022
2021
The moderating role of parenting dimensions in the association between traditional or cyberbullying victimization and mental health among adolescents of different sexual orientation
Ann DeSmet
Maddalena Rodelli
Michel Walrave
Gwendolyn Portzky
Eva Dumon
Bart Soenens
A1
Journal Article
in
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
2021
2019
Burn-out bij Belgische arts-specialisten in opleiding : exploratie van het relatieve belang van werkorganisatorische risicofactoren
Ruben Willems
Christel Monten
Gwendolyn Portzky
A4
Journal Article
in
ONCO HEMATO
2019
Ethical guidelines for technology-based suicide prevention programmes
Eva De Jaegere
Marjolijn van den Berg
Solvejg Wallyn
Gwendolyn Portzky
Bookchapter
in
Reducing the toll of suicide : resources for communities, groups, and individuals
2019
Medication used in intentional drug overdose in Flanders 2008-2013
Nikita Vancayseele
Ine Rotsaert
Gwendolyn Portzky
Cornelis Van Heeringen
A1
Journal Article
in
PLOS ONE
2019
Onlinehulpverlening
Eva De Jaegere
Bregje van Spijker
Bookchapter
in
Handboek suïcidaal gedrag
2019
Suïcide in penitentiaire inrichtingen
Louis Favril
Marieke Liem
Bookchapter
in
Handboek suïcidaal gedrag
2019
Suïcidepreventie bij ouderen : onderbelicht, maar van levensbelang
Eva Dumon
Saskia Aerts
Gwendolyn Portzky
A4
Journal Article
in
GERON
2019
The online treatment of suicidal ideation : a randomised controlled trial of an unguided web-based intervention
Eva De Jaegere
Renate van Landschoot
Cornelis Van Heeringen
Bregje AJ van Spijker
Ad JFM Kerkhof
Jan K Mokkenstorm
Gwendolyn Portzky
A1
Journal Article
in
BEHAVIOUR RESEARCH AND THERAPY
2019
Think Life : een online interventie voor het leren omgaan met suïcidale gedachten
Eva De Jaegere
Renate van Landschoot
Cornelis Van Heeringen
Ad Kerkhof
Gwendolyn Portzky
A4
Journal Article
in
NEURON (NEDERLANDSE ED.)
2019
2018
Exploring the relative importance of work-organizational burnout risk factors in Belgian residents
Ruben Willems
Christel Monten
Gwendolyn Portzky
A1
Journal Article
in
MEDICAL EDUCATION ONLINE
2018
Suïcidaal gedrag herkennen en bespreken : richtlijnen en tools voor de huisarts
Saskia Aerts
Eva Dumon
Cornelis Van Heeringen
Gwendolyn Portzky
A2
Journal Article
in
HUISARTS NU
2018
Suïcidepreventie in de zorg : nieuwe richtlijn en e-learningwebsite
Eva Dumon
Saskia Aerts
Cornelis Van Heeringen
Gwendolyn Portzky
A2
Journal Article
in
TIJDSCHRIFT KLINISCHE PSYCHOLOGIE
2018
The association between motives, perceived problems and current thoughts of self-harm following an episode of self-harm : a network analysis
Derek de Beurs
Nikita Vancayseele
Claudia van Borkulo
Gwendolyn Portzky
Cornelis Van Heeringen
A1
Journal Article
in
JOURNAL OF AFFECTIVE DISORDERS
2018
The effect of mindfulness-based cognitive therapy and future-oriented group therapy on preventing suicidal thoughts and behaviours : a randomised controlled trial
Eva De Jaegere
Eva Dumon
Renate van Landschoot
Cornelis Van Heeringen
Gwendolyn Portzky
C3
Conference
2018
The relationship between entrapment and suicidal behavior through the lens of the integrated motivational-volitional model of suicidal behavior
Rory C O’Connor
Gwendolyn Portzky
A1
Journal Article
in
CURRENT OPINION IN PSYCHOLOGY
2018
Which healthy lifestyle factors are associated with a lower risk of suicidal ideation among adolescents faced with cyberbullying?
Maddalena Rodelli
Ilse De Bourdeaudhuij
Eva Dumon
Gwendolyn Portzky
Ann DeSmet
A1
Journal Article
in
PREVENTIVE MEDICINE
2018
2017
BackUp : development and evaluation of a smart-phone application for coping with suicidal crises
Kirsten Pauwels
Saskia Aerts
Ekke Muijzers
Eva De Jaegere
Cornelis Van Heeringen
Gwendolyn Portzky
A1
Journal Article
in
PLOS ONE
2017
Detectie en behandeling van suïcidaal gedrag : multidisciplinaire richtlijn voor hulpverleners in de gezondheidszorg
Saskia Aerts
Eva Dumon
Cornelis Van Heeringen
Gwendolyn Portzky
Book
2017
Knowledge, self-confidence and attitudes towards suicidal patients at emergency and psychiatric departments : a randomised controlled trial of the effects of an educational poster campaign
Renate van Landschoot
Gwendolyn Portzky
Cornelis Van Heeringen
A1
Journal Article
in
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
2017
Omgaan met suïciderisico : nieuwe Vlaamse richtlijn pleit voor open communicatie en specifieke interventies
Eva Dumon
Saskia Aerts
Cornelis Van Heeringen
Gwendolyn Portzky
A4
Journal Article
in
NEURON (NEDERLANDSE ED.)
2017
The impact of screening psychiatric comorbidity and high-risk feedback on liaison psychiatric consultation rates and clinicians' attitudes on a neurology ward
Rita Van Damme
Gwendolyn Portzky
Paul Boon
Gilbert Lemmens
C3
Conference
2017
2016
Correlates of suicidal ideation in incarcerated offenders : a pilot study in three Belgian prisons
Ciska Wittouck
Louis Favril
Gwendolyn Portzky
Freya Vander Laenen
Frédéric Declercq
Kurt Audenaert
A2
Journal Article
in
JOURNAL OF CRIMINAL PSYCHOLOGY
2016
Increase in self-injury as a method of self-harm in Ghent, Belgium : 1987-2013
Nikita Vancayseele
Gwendolyn Portzky
Cornelis Van Heeringen
A1
Journal Article
in
PLOS ONE
2016
The development and progress of a regional suicide prevention strategy in Flanders (Belgium)
Eva Dumon
Cornelis Van Heeringen
Gwendolyn Portzky
C3
Conference
2016
2015
The association between goth subculture identification, depression and self-harm
Rory O'Connor
Gwendolyn Portzky
Editorial material
2015
The role of mobile phone technology in understanding and preventing suicidal behavior
Derek de Beurs
Olivia Kirtley
Ad Kerkhof
Gwendolyn Portzky
Rory O'Connor
Editorial material
2015
2014
A CBT-based psychoeducational intervention for suicide survivors
Ciska Wittouck
Sara Van Autreve
Gwendolyn Portzky
Cornelis Van Heeringen
A1
Journal Article
in
CRISIS-THE JOURNAL OF CRISIS INTERVENTION AND SUICIDE PREVENTION
2014
Attempted suicide in patients with eating disorders
Gwendolyn Portzky
Cornelis Van Heeringen
Myriam Vervaet
A1
Journal Article
in
CRISIS-THE JOURNAL OF CRISIS INTERVENTION AND SUICIDE PREVENTION
2014
2013
Cost-effectiveness of a helpline for suicide prevention
Lore Pil
Kirsten Pauwels
Ekke Muijzers
Gwendolyn Portzky
Lieven Annemans
A1
Journal Article
in
JOURNAL OF TELEMEDICINE AND TELECARE
2013
Suizidales Verhalten in Flandern (Belgien): Häufigkeit und Präventionsstrategien
M Vanslembrouck
Gwendolyn Portzky
Cornelis Van Heeringen
A4
Journal Article
in
SUIZIDPROPHYLAXE
2013
2012
Cost-effectiveness analysis of a helpline for suicide prevention
Lore Pil
Lieven Annemans
Kirsten Pauwels
Ekke Muijzers
Gwendolyn Portzky
C3
Conference
2012
Gecompliceerde rouw na zelfdoding : risicofactoren en preventie
Ciska Wittouck
Sara Van Autreve
Gwendolyn Portzky
Cornelis Van Heeringen
Report
2012
2011
The prevention and treatment of complicated grief: a meta-analysis
Ciska Wittouck
Sara Van Autreve
Eva De Jaegere
Gwendolyn Portzky
Cornelis Van Heeringen
A1
Journal Article
in
CLINICAL PSYCHOLOGY REVIEW
2011
2010
A comparative follow-up study of aftercare and compliance of suicide attempters following standardized psychosocial assessment
Ciska Wittouck
Stephanie De Munck
Gwendolyn Portzky
Leen Van Rijsselberghe
Sara Van Autreve
Cornelis Van Heeringen
A1
Journal Article
in
ARCHIVES OF SUICIDE RESEARCH
2010
Suïcidaal gedrag: epidemiologie en risicofactoren
Gwendolyn Portzky
Sara Van Autreve
Cornelis Van Heeringen
A4
Journal Article
in
HUISARTS NU
2010
2009
Epidemiological trends in attempted suicide in adolescents and young adults between 1996 and 2004
Stephanie De Munck
Gwendolyn Portzky
Cornelis Van Heeringen
A1
Journal Article
in
CRISIS-THE JOURNAL OF CRISIS INTERVENTION AND SUICIDE PREVENTION
2009
Preventie van suïcidepogingen in het algemeen ziekenhuis: de ontwikkeling en implementatie van een instrument voor psychosociale evaluatie en opvang van suïcidepogers (IPEO)
Stephanie De Munck
Leen Van Rijsselberghe
Sara Van Autreve
Robbert Van Hove
Gwendolyn Portzky
J Hoste
A Kongs
Cornelis Van Heeringen
A2
Journal Article
in
Tijdschrift voor Geneeskunde
2009
Psychosocial and psychiatric factors associated with adolescent suicide: a case-control psychological autopsy study
Gwendolyn Portzky
Kurt Audenaert
Cornelis Van Heeringen
A1
Journal Article
in
JOURNAL OF ADOLESCENCE
2009
Reasons for adolescent deliberate self-harm: a cry of pain and/or a cry for help?
G Scolliers
Gwendolyn Portzky
Nicola Madge
Anthea Hewitt
Keith Hawton
Erik Jan De Wilde
Mette Ystgaard
Ella Arensman
Diego De Leo
Sandor Fekete
et al.
A1
Journal Article
in
SOCIAL PSYCHIATRY AND PSYCHIATRIC EPIDEMIOLOGY
2009
Sociodemographic and psychopathological risk factors for repetition of attempted suicide: a 5-year follow-up study
Gerrit Scolliers
Gwendolyn Portzky
Cornelis Van Heeringen
Kurt Audenaert
A1
Journal Article
in
ARCHIVES OF SUICIDE RESEARCH
2009
Suïcide bij jongeren
Gwendolyn Portzky
Cornelis Van Heeringen
A1
Journal Article
in
PSYCHOLOGIE & GEZONDHEID
2009
Zelfbeschadigend gedrag bij adolescenten in Vlaanderen
Leen Van Rijsselberghe
Gwendolyn Portzky
Cornelis Van Heeringen
A2
Journal Article
in
TIJDSCHRIFT VOOR PSYCHIATRIE
2009
2008
Deliberate self-harm in young people: differences in prevalence and risk factors between The Netherlands and Belgium
Gwendolyn Portzky
EJ DE WILDE
Cornelis Van Heeringen
A1
Journal Article
in
EUROPEAN CHILD & ADOLESCENT PSYCHIATRY
2008
Epidemiological trends in attempted suicide in Flanders, Belgium, between 1999 and 2006
Sara Van Autreve
Leen Van Rijsselberghe
Gwendolyn Portzky
Cornelis Van Heeringen
C3
Conference
2008
The effects of energy drinks on cognitive performance
Kurt Audenaert
Gwendolyn Portzky
PC Van Baelen
F Van den Eynde
A2
Journal Article
in
TIJDSCHRIFT VOOR PSYCHOTHERAPIE
2008
2007
Cultural aspects of suicide
Gwendolyn Portzky
Cornelis Van Heeringen
Bookchapter
in
Textbook of Cultural Psychiatry
2007
Deliberate self-harm in adolescents
Gwendolyn Portzky
Cornelis Van Heeringen
A1
Journal Article
in
CURRENT OPINION IN PSYCHIATRY
2007
2006
Suicide prevention in adolescents: a controlled study of the effectiveness of a school-based psycho-educational program
Gwendolyn Portzky
Cornelis Van Heeringen
A1
Journal Article
in
JOURNAL OF CHILD PSYCHOLOGY AND PSYCHIATRY
2006
2005
Adjustment disorder and the course of the suicidal process in adolescents
Gwendolyn Portzky
Kurt Audenaert
Cornelis Van Heeringen
A1
Journal Article
in
JOURNAL OF AFFECTIVE DISORDERS
2005
Suicide among adolescents - A psychological autopsy study of psychiatric, psychosocial and personality-related risk factors
Gwendolyn Portzky
Kurt Audenaert
Cornelis Van Heeringen
A1
Journal Article
in
SOCIAL PSYCHIATRY AND PSYCHIATRIC EPIDEMIOLOGY
2005
2004
Perceptions, needs and mourning reactions of bereaved relatives confronted with a sudden unexpected death
E MERLEVEDE
D SPOOREN
H HENDERICK
Gwendolyn Portzky
Walter Buylaert
C JANNES
Paul Calle
M VAN STAEY
C DE ROCK
L SMEESTERS
et al.
A1
Journal Article
in
RESUSCITATION
2004
2003
Repetition of Suicidal behaviour following self-poisoning with pesticides
K NAUDTS
Gwendolyn Portzky
Kurt Audenaert
Cornelis Van Heeringen
C3
Conference
2003
2002
Het stillen van de pijn: over preventie van suïcide /
Gwendolyn Portzky
Cornelis Van Heeringen
Book
2002
2001
Risk factors for the repetition of suicidal behaviour : a five-year follow-up study
Cornelis Van Heeringen
Kurt Audenaert
Gwendolyn Portzky
C1
Conference
2001