Fig 1.
Flow diagram of article selection.
aSome studies were excluded for more than one reason so the total studies do not equal 66.
Table 1.
Characteristics of studies, population and outcomes included in the review.
Fig 2.
Forest plot for the effect of interventions on PTSD symptoms.
Fig 3.
Forest plot for the effect of interventions on depression symptoms.
Fig 4.
Forest plot for the effect of interventions on anxiety symptoms.
Fig 5.
Forest plot for the effect of interventions on stress symptoms.
Table 2.
Comparing between three categories of interventions: CBT versus other interventions; clinician versus non-clinician providers; and individual versus group interventions for PTSD and depression.
Table 3.
Meta-regression analyses relating to sample size, risk of bias, number of sessions, and the total length of intervention minutes.