Randomised Controlled Trial of Cognitive Behaviour Therapy to Reduce Posttraumatic Stress Disorder Symptoms After Terrorist Attacks in Thailand

INTERVENTION: Cogntive behaviour therapy involves 8 x 60 minute sessions of individual therapy provided on a a once‐weekly basis that lasts 8 weeks. The therapy includes exposure to trauma memories and re‐appraisal of beliefs about the trauma. CONDITION: Posttraumatic stress disorder PRIMARY OUTCOME: Posttraumatic Stress Disorder Scale SECONDARY OUTCOME: Beck Depression Inventory INCLUSION CRITERIA: Meet DSM‐IV criteria for Posttraumatic Stress Disorder: (a) exposed to a terrorist attack, (b) reexperiencing criteria, (c) avoidance criteria, (d) arousal criteria, (e) lasting at least 1 month, and (f) causes impairment.