Model | Effect size and 95% interval | Test of null (two-tail) | Heterogeneity | |||||||
---|---|---|---|---|---|---|---|---|---|---|
Number of studies | Point estimate | Lower limit | Upper limit | Z value | p value | Q value | df (Q) | p value | I2 (%, 95% CI) | |
Fixed | 10 | 2.57 | 2.22 | 2.99 | 12.40 | < 0.001 | 38.566 | 9 | < 0.0001 | 76.66 (56.96–87.35) |
Random | 10 | 2.32 | 1.66 | 3.24 | 4.92 | < 0.001 | − | − | − | − |