Table 4.
Subgroup analysis.
| Anxiety | Studies, N | Pooled,% | 95% CI | I2 | p |
|---|---|---|---|---|---|
| Region†: | |||||
| Asia | 10 | 21.5 | 13.1–21.3 | 99.508 |
0.145 |
| Europe | 8 | 21.0 | 12.7–30.8 | 98.255 | |
| North America | 5 | 35.3 | 23.0–48.6 | 98.330 | |
| GDP per capita: | 0.054 | ||||
| >$25,000 | 10 | 25.6 | 16.0–36.6 | 98.980 | |
| $10–15,000 | 10 | 16.4 | 9.4–24.9 | 98.870 | |
| >$10,000 | 8 | 32.7 | 22.3–44.1 | 98.934 | |
| Doctors per 100K: | 0.003** | ||||
| >30 | 5 | 19.1 | 9.1–31.6 | 98.681 | |
| 20–29 | 11 | 32.4 | 24.0–41.4 | 97.796 | |
| 15.5–19 | 8 | 14.7 | 9.0–21.5 | 98.050 | |
| <15.5 | 4 | 37.9 | 20.6–56.9 | 99.51 |
† Regions with fewer than four studies omitted * p = < 0.05 ** p = <0.01.