Meta-analysis of the efficacy and acceptability of cognitive-behavioural therapy for Arab adult populations experiencing anxiety, depression or post-traumatic stress disorder.

A meta-analysis of the literature of cognitive behaviour therapy (CBT) with Arab adult populations experiencing anxiety, depression or post-traumatic stress disorder (PTSD) was conducted. Nine studies (n = 536) met the eligibility criteria. Three of the nine studies (33%) were randomised control trials using waitlist control groups. All studies (100%) reported a statistically significant reduction in psychological symptoms at post-treatment with large effect sizes for anxiety (effect size, 95% confidence interval) (1.44 [1.29, 1.59]), depression (1.26 [1.16, 1.35]) and PTSD (2.08 [1.94, 2.23]). Six out of the nine studies (67%) collated follow-up data and reported that reductions of psychological symptoms were maintained at follow-up. An average dropout rate of 26% indicated good overall acceptability. Five out of nine (55%) of the trials reported diagnostic remission rates and of those trials the mean remission rate was 31%). Five of the nine eligible studies (55%) delivered remotely via Internet or telephone were found to have similar effect sizes as face-to-face CBT. The current meta-analysis indicates the potential of CBT, delivered either face-to-face or via internet, as efficacious and acceptable interventions for the treatment of anxiety, depression and PTSD for Arab adult populations.