Cited by 425Posttraumatic Stress Disorder ResearchMigration, Health and TraumaChild Abuse and Trauma

Dose-effect relationships of trauma to symptoms of depression and post-traumatic stress disorder among Cambodian survivors of mass violence

Mollica, Richard F., McInnes, Keith, Pool, Charles, Tor, Svang·1998·British Journal of Psychiatry

Abstract

Background The dose-effect relationships of cumulative trauma to the psychiatric symptoms of major depression and post-traumatic stress disorder (PTSD) in a community study of Cambodian survivors of mass violence were evaluated. Method In 1990, a survey of 1000 households was conducted in a Thai refugee camp (Site 2) using a multi-stage random sampling design. Trauma history and psychiatric symptoms were assessed for two time periods. Analysis used linear dose-response regression modelling. Results 993 Cambodian adults reported a mean of 14 Pol Pot era trauma events and 1.3 trauma events during the past year. Symptom categories of depression, PTSD, dissociative and culturally dependent symptoms exhibited strong dose-effect responses with the exception of avoidance. All symptom categories, except avoidant symptoms, were highly correlated. Conclusions Cumulative trauma continued to affect psychiatric symptom levels a decade after the original trauma events. The diagnostic validity of PTSD criteria, with the notable exception of avoidance, was supported. Inclusion of dissociative and culturally dependent symptoms increased the cultural sensitivity of PTSD.

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Crossref · 10.1192/bjp.173.6.482

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Authors
Mollica, R. F., McInnes, K., Pool, C., & Tor, S.
Affiliations
  • Harvard University (US)
  • Boston University (US)
Corresponding author
Mollica, Richard F.
Venue
British Journal of Psychiatry
Published
1998-12
Volume
173
Issue
6
Pages
482-488
ISSN
  • 0007-1250 (ISSN-L)
  • 1472-1465
OpenAlex
W2115904192
Cited by
425
References
20
Citations by year
2026: 12 · 2025: 7 · 2024: 11 · 2023: 19 · 2022: 8 · 2021: 18 · 2020: 14 · 2019: 11 · 2018: 20 · 2017: 21 · 2016: 13 · 2015: 16 · 2014: 22 · 2013: 23 · 2012: 19
FWCI
8.19
Type
journal article
Language
en
Open access
closed
Locations
  • The British Journal of Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Social Sciences › Psychology › Clinical Psychology › Posttraumatic Stress Disorder Research
  • Social Sciences › Psychology › Clinical Psychology › Migration, Health and Trauma
  • Social Sciences › Psychology › Clinical Psychology › Child Abuse and Trauma
Keywords
cumulative trauma, dose-response relationship, major depressive disorder, post-traumatic stress disorder, Cambodian refugees, dissociative symptoms, avoidance symptoms, refugee mental health
MeSH terms
Adolescent, Adult, Aged, Anxiety, Cambodia, Depressive Disorder, Dissociative Disorders, Humans, Middle Aged, Stress Disorders, Post-Traumatic, Survival, Violence

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