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Posttraumatic Stress Disorder (PTSD) in the General Population
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- Frans, Örjan, 1951- (author)
- Uppsala universitet,Institutionen för psykologi
- Fredrikson, Mats (thesis advisor)
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- Ågren, Hans, Professor (opponent)
- Karolinska Institutet, Neurotec, Stockholm
- (creator_code:org_t)
- ISBN 9155456979
- Uppsala : Acta Universitatis Upsaliensis, 2003
- English 66 s.
- Series: Comprehensive Summaries of Uppsala Dissertations from the Faculty of Social Sciences, 0282-7492 ; 129
- Doctoral thesis (other academic/artistic)
Abstract
Subject headings
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- This thesis explored the epidemiology of Posttraumatic Stress Disorder (PTSD) and different aspects of the disorder. Firstly, we investigated the lifetime prevalence of traumatic experiences and PTSD in the general adult population in Sweden and evaluated the impact of different trauma types, trauma frequency, and perceived distress. The results show that traumatic experiences are common and PTSD is not rare; roughly one out of ten traumatic events results in PTSD, with a 5.6% lifetime prevalence. The female/male ratio is 2:1. The risk for PTSD increases considerably with a high trauma-associated emotional impact. The distressing impact of a given trauma appears to be higher in women than in men, indicating an increased vulnerability in women. Secondly, we hypothesized that traffic road accidents (TRA’s) are one of the most prevalent types of traumatic events in Swedish society; therefore, we examined the impact of event and response characteristics associated with TRA’s on PTSD development. The data demonstrate that of those who had experienced a TRA (n=1074, 58.9%), 6.1% reported lifetime PTSD. TRA’s associated with fatal accidents and injury to oneself and related to high distress more than double the risk for PTSD. Thirdly, we compared the relative merits of the DSM-IV’s three-factor solution for PTSD symptoms to alternative models. We found that the symptomatology is equally well accounted for using all factor analytic models as yet presented in the literature; the DSM-IV, we found, provides as good a fit to data as other models. Fourthly, we examined the neurofunctional correlates of PTSD symptoms and whether a treatment-induced (serotonin reuptake inhibitor - SSRI) reduction of PTSD symptoms is associated with altered rCBF during symptom provocation. Our results indicate that PTSD symptoms correlates with areas involved in memory, emotion, attention, and motor control and that SSRI treatment normalizes provocation-induced rCBF in these areas.
Subject headings
- SAMHÄLLSVETENSKAP -- Psykologi (hsv//swe)
- SOCIAL SCIENCES -- Psychology (hsv//eng)
Keyword
- Psychology
- posttraumatic stress disorder
- trauma
- epidemiology
- general population
- prevalence
- traffic road accidents
- DSM-structure
- positron emission tomography
- regional cerebral blood flow
- symptom provocation
- selective serotonin reuptake inhibitor
- Psykologi
- Psychology
- Psykologi
- klinisk psykologi
- Clinical Psychology
Publication and Content Type
- vet (subject category)
- dok (subject category)
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