Predictors Flashcards
Estimates of traumatic events vs PTSD
80% experiences a traumatic event in their lifetime
7,4% develop PTSD
Predictor classes
Two classes of predictors:
1) Predictors based on proximity to the traumatic event
2) Predictors based on factors more distant, eg prior adjustment/family history
Distal factors have smaller effects that the proximital
Prior event
Prior adjustment
Family history of psychopathology
Best predictors
Those during or right after event:
Perceived life threat
Perceived support
Peritraumatic emotions
Peritraumatic dissociation
Unexplained variance
Despite identified predictors, a substantial proportion of the variability in responses to traumatic stressors remains unexplained. This suggests that unique individual and situational factors may play a crucial role in determining who develops PTSD symptoms
Heterogeneity
Different effect sizes across a lot of studies, assuming their interchangeability for analyses may overlook significant variations. The consequences of exposure to trauma are considered more homogenous compared to the events themselves.
Brewins study
Predictors slightly different, pattern is roughly the same.
Strongest predictors are during and right after trauma:
- trauma severity
- Lack of social support.
- Life stress
Factors less likely to change, eg age, education etc. have smaller effect sizes
Predictors in children
Again slightly similar but slightly mixed
Posttrauma and subjective measures were measured as strongest effect sizes.