Age range | Number of studies | Total numbers of participants | Median (%) | Minimum (%) | Maximum (%) | Pooled prevalence (%) (95% CI) |
---|---|---|---|---|---|---|
≥ 18 y | 19 | 203052 | 43.4 | 23.3 | 75.9 | 42.4 (37.2 ~ 47.7) |
≥ 30 y | 9 | 35892 | 44.2 | 23.3 | 59.9 | 40.9 (33.7 ~ 48.5) |
Total | 28 | 238944 | 44 | 23.3 | 75.9 | 41.9 (37.7 ~ 46.2) |