Continents | Number of articles | Sample size | I2 | Begg and mazumdar rank correlation test | Prevalence per 100,000 |
---|---|---|---|---|---|
Asia | 15 | 603,327,498 | 91.8 | 0.101 | 10.9 (95% CI 6.4–17.9) |
Europe | 47 | 1,383,299,257 | 79.2 | 0.102 | 10 (95% CI 8.2–12.2) |
America | 28 | 195,218,499 | 87.9 | 0.110 | 19 (95% CI 15–23.8) |
Africa | 2 | 59,303 | 79.03 | – | 15.2 (95% CI 6.9–30.2) |