Table 2.
Subgroup analysis for the meta-analysis of the prevalence of depression among prisoners.
| Subgroups | No. of studies | Prevalence (%) | 95% CI | Heterogeneity within the study (I2 and Q) | Heterogeneity between groups (p value) | |
|---|---|---|---|---|---|---|
| Q value | I 2 (%) | |||||
| Study design | ||||||
| Cohort | 4 | 45.6 | 12.8-82.8 | 415.472 | 92.278 | <0.001 |
| Case-control | 1 | 88.0 | 68.2-96.2 | 0.00 | 0.00 | |
| Cross-sectional | 27 | 33.9 | 23.8-45.8 | 7575.659 | 99.657 | |
| Country | ||||||
| Developed | 14 | 33.1 | 23.7-44.0 | 1366.316 | 99.049 | <0.001 |
| Developing | 18 | 39.2 | 27.6-52.2 | 2339.710 | 99.273 | |
| Tools used to assess depression | ||||||
| Diagnostic tool | 14 | 19.1 | 15.0-23.9 | 815.867 | 98.407 | <0.001 |
| Screening tool | 19 | 54.0 | 43.8-63.9 | 954.901 | 98.220 | |