Building capacity in mental health care in low- and middle-income countries by training primary care physicians using the mhGAP: a randomized controlled trial

To address the rise in mental health conditions in Tunisia, a training based on the Mental Health Gap Action Programme (mhGAP) Intervention Guide (IG) was offered to primary care physicians (PCPs) working in the Greater Tunis area. Non-specialists (such as PCPs)' training is an internationally supported way to target untreated mental health symptoms. We aimed to evaluate the programme's impact on PCPs' mental health knowledge, attitudes, self-efficacy and self-reported practice, immediately following and 18 months after training. We conducted an exploratory trial with a combination of designs: a pretest-posttest control group design and a one-group pretest-posttest design were used to assess the training's short-term impact; and a repeated measures design was used to assess the training's long-term impact. The former relied on a delayed-intervention strategy: participants assigned to the control group (Group 2) received the training after the intervention group (Group 1). The intervention consisted of a weekly mhGAP-based training session (totalling 6 weeks), comprising lectures, discussions, role plays and a support session offered by trainers. Data were collected at baseline, following Group 1's training, following Group 2's training and 18 months after training. Descriptive, bivariate and ANOVA analyses were conducted. Overall, 112 PCPs were randomized to either Group 1 (n = 52) or Group 2 (n = 60). The training had a statistically significant short-term impact on mental health knowledge, attitudes and self-efficacy scores but not on self-reported practice. When comparing pre-training results and results 18 months after training, these changes were maintained. PCPs reported a decrease in referral rates to specialized services 18 months after training in comparison to pre-training. The mhGAP-based training might be useful to increase mental health knowledge and self-efficacy, and decrease reported referral rates and negative mental health attitudes among PCPs in Tunisia and other low- and middle-income countries. Future studies should examine relationships among these outcome variables.