Table 7.
Summary of meta-analysis results for approach to prevention programs analysed by who delivered the intervention.
| Delivery | Post Intervention | 3–9 Month Follow-up | 12-Month Follow-up | |||
|---|---|---|---|---|---|---|
| Depressive disorder (RD) | Depression symptoms (SMD) | Depressive disorder (RD) | Depression symptoms (SMD) | Depressive disorder (RD) | Depression symptoms (SMD) | |
| Mental health expert | 5 studies; 5 intervention arm; N = 665 RD −0.10 [−0.18, −0.01] I2 = 71% |
15 studies; 15 intervention arm; N = 2649 SMD −0.24 [−0.37, −0.11] I2 = 54% |
5 studies; 5 intervention arm; N = 883 RD −0.11 [−0.16, −0.06] I2 = 0% |
12 studies; 12 intervention arm; N = 2612SMD −0.21 [−0.33, −0.09] I2 = 52% |
2 studies; 2 intervention arm; N = 195 RD −0.12 [−0.24, −0.01] I2 = 0% |
8 studies; 8 intervention arm; N = 1718SMD −0.17 [−0.29, −0.05] I2 = 21% |
| Non mental health expert | 4 studies; 4 intervention arms; N = 597 RD −0.18 [−0.35, −0.02] I2 = 80% |
14 studies; 15 intervention arms; N = 5267 SMD 0.04 [−0.20, 0.28] |
5 studies; 5 intervention arms; N = 1065 RD -0.13 [−0.22, −0.05] I2 = 63% |
8 studies; 8 intervention arms; N = 2861 SMD 0.12 [−0.24, 0.47] |
4 studies; 4 intervention arm; N = 595 RD −0.02 [−0.09, 0.04] |
7 studies; 8 intervention arm; N = 3397 SMD −0.06 [−0.13, 0.01] |
| Student | 5 studies; 5 intervention arms; N = 514 RD −0.08 [−0.13, −0.03] I2 = 0% |
12 studies; 13 interventionarms; N = 1143 SMD −0.24 [−0.41, −0.07] I2 = 36% |
5 studies; 5 intervention arms; N = 306 RD −0.08 [−0.18, 0.02] |
8 studies; 9 intervention arms; N = 597 SMD −0.19 [−0.37, −0.00] I2 = 15% |
3 studies; 3 intervention arm; N = 359 RD −0.09 [−0.28, 0.11] |
3 studies; 3 intervention arms; N = 340 SMD −0.21 [−0.53, 0.10] |
| Subgroup differences | χ2 = 1.30, p = 0.52 | χ2 = 4.44, p = 0.11 | χ2 = 0.55, p = 0.76 | χ2 = 2.82, p = 0.24 | χ2 = 2.55, p = 0.28 | χ2 = 2.79, p = 0.25 |
RD: Risk Difference; SMD: Standardised Mean Difference; Bold font indicates significant results.