| N | Sample size | I2 | Prevalence (95% CI) | |
---|---|---|---|---|---|
Study time range | 1 Year | 7 | 247,424 | 99.9 | 8.9 (95% CI 4.5–16.8) |
1–4 Years | 6 | 540,229 | 99.9 | 11 (95% CI 8.9–13.5) | |
 > 4 Years | 2 | 40,290 | 96.4 | 29.3 (95% CI 22.1–37.7) | |
Sex | Man | 14 | 392,835 | 99.9 | 6.1 (95% CI 3.6–10) |
Women | 14 | 434,388 | 99.9 | 14.2 (95% CI 9.7–20.2) |