Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Proportion of people with PTSD
Systematic review	73 people Data from 1 RCT	Proportion of people with PTSD 16/37 (43%) with trauma-focused CBT 21/36 (58%) with supportive psychotherapy	RR 0.74 95% CI 0.47 to 1.18		Not significant