Subgroup | Number of studies | Estimates | Heterogeneity | |||
---|---|---|---|---|---|---|
Prevalence (%) | 95% CI | I2 (%) | Q(DF) | P-value | ||
Country | ||||||
 Ethiopia | 3 | 16.97 | 13.48, 20.46 | 94.2 | 167.4(2) | < 0.001 |
 Nigeria | 2 | 13.20 | 5.56, 20.84 | 92,4 | 123.4(1) | < 0.001 |
 Uganda | 2 | 3.51 | 2.72, 4.29 | 96.6 | 456(1) | < 0.001 |
Assessment tool used | ||||||
 MINI | 2 | 3.75 | 3.13, 4.37 | 87.1 | 85.27(2) | < 0.001 |
 CIDI | 4 | 16.97 | 13.48, 20.46 | 99.8 | 1079.2(8) | < 0.001 |
 Others | 2 | 13.2 | 5.56, 20.84 | 96.7 | 379.6(2) | < 0.001 |
Sample size studied | ||||||
 < 400 | 3 | 15.5 | 9.06, 21.95 | 98.4 | 768.12(12) | < 0.001 |
 ≥ 400 | 5 | 8.4 | 2.52, 14.29 | 98.2 | 635.05(4) | < 0.001 |
Year of publication | ||||||
 Before 2015 | 3 | 8.6 | 3.30, 13.92 | 98.6 | 785.32(3) | < 0.001 |
 After 2015 | 5 | 13.5 | 7.94, 19.07 | 98.8 | 1065.17(3) | < 0.001 |