Article
A population-based study of familial and individual-specific environmental contributions to traumatic event exposure and posttraumatic stress disorder symptoms in a Norwegian twin sample.
Twin research and human genetics : the official journal of the International Society for Twin Studies - 1 Oct 2012
Amstadter Ananda B, Aggen Steven H, Knudsen Gun Peggy, Reichborn-Kjennerud Ted, Kendler Kenneth S
Abstract excerpt
OBJECTIVE: Posttraumatic stress disorder (PTSD) is one of the only disorders in the Diagnostic and Statistical Manual of Mental Disorders that requires an environmental exposure. The relationship between liability factors for trauma exposure and those for PTSD symptoms following exposure are unclear. METHODS: Exposure to a trauma and resulting PTSD symptoms were assessed in a sample of 2,794 members of the...
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