Table 5.
Study, n | Point Estimate (Random Effects Model) (95% CI) | p-Value (By Q Test) | I 2 | |
---|---|---|---|---|
All studies | 39 | 0.154 (0.107; 0.201) | 0.0001 (6929,1) | 99.4% |
Studies (China) | 30 | 0.094 (0.075; 0.114) | 0.0001 (567.09) | 94.8% |
US studies | 7 | 0.353 (0.286; 0.42) | 0.0001 (374.9) | 98.4% |
Studies (Korea) | 2 | 0.139 (0.044; 0.233) | 0.023 (5.168) | 80.6% |
Retrospective studies | 28 | 0.17 (0.109; 0.23) | 0.0001 (2433.1) | 98.8% |
Population-based studies | 4 | 0.268 (0.04; 0.496) | 0.0001 (6049.3) | 99.9% |
Small studies * | 10 | 0.17 (0.098; 0.243) | 0.0001 (108.4) | 92.6% |
* small studies (studies with size < 100 pts).