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Open Access Research article

What are the risk factors for the comorbidity of posttraumatic stress disorder and depression in a war-affected population? a cross-sectional community study in South Sudan

Touraj Ayazi1*, Lars Lien125, Arne H Eide3, Majok Malek Ruom4 and Edvard Hauff12

Author Affiliations

1 Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, P.O box 1171, Blindern, Oslo, 0318, Norway

2 Division of Mental Health and Addiction, Department of Research and Development, Oslo University Hospital, Ulleval, Kirkeveien 166, Building 20, Oslo, 0407, Norway

3 SINTEF Pb. 124 Blindern, Oslo, 0314, Norway

4 Wau Teaching Hospital, Western Bahr el Ghazal State, Wau, Ghazal, South Sudan

5 Center for dual diagnosis, Hospital Innlandet Trust, Ottestad, 2312, Norway

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BMC Psychiatry 2012, 12:175  doi:10.1186/1471-244X-12-175

Published: 19 October 2012

Abstract

Background

Limited data exists on the association of war trauma with comorbid posttraumatic stress disorder (PTSD)-depression in the general population of low-income countries. The present study aimed to evaluate socioeconomic and trauma-related risk factors associated with PTSD, depression, and PTSD-depression comorbidity in the population of Greater Bahr el Ghazal States, South Sudan.

Methods

In this cross-sectional community study (n=1200) we applied the Harvard Trauma Questionnaire (HTQ) and MINI International Neuropsychiatric Interview (MINI) to investigate the prevalence of PTSD, depression, and PTSD-depression comorbidity. Multinomial logistic regression analyses were conducted to examine the association between these disorders, previous trauma exposure, sociodemographic, and socioeconomic factors.

Results

PTSD only was found in 331 (28%) and depression only in 75 (6.4%) of the study population. One hundred and twelve (9.5%) of the participants had PTSD-depression comorbid diagnosis. Exposure to traumatic events and socioeconomic disadvantage were significantly associated with having PTSD or PTSD-depression comorbidity but not with depression. Participants with a comorbid condition were more likely to be socioeconomic disadvantaged, have experienced more traumatic events, and showed higher level of psychological distress than participants with PTSD or depression alone.

Conclusions

In individuals exposed to war trauma, attention should be given to those who may fulfill criteria for a diagnosis of both PTSD and depression.

Keywords:
PTSD; Depression; Comorbidity; Tauma; Post-conflict; Socioeconomic, South Sudan