Table 3.
d [95% CI OR] | Heterogeneity (I2) | |
---|---|---|
Pregnancy scan only (k = 3) | − 0.180 [− 0.404, 0.044], z = 1.577, p = 0.115 | < 0.001%, p = 0.955 |
Pregnancy test only (k = 3) | − 0.267 [− 0.576, 0.043], z = 1.690, p = 0.091 | < 0.001%, p = 0.883 |
First ART (k = 3) | − 0.172 [− 0.394, 0.051], z = 1.513, p = 0.130 | < 0.001%, p = 0.989 |
Single cycle (k = 4) | − 0.153 [− 0.365, 0.058], z = 1.424, p = 0.155 | < 0.001%, p = 0.965 |
IVF only (k = 5) | − 0.207 [− 0.446, 0.033], z = 1.693, p = 0.090 | < 0.001%, p = 0.925 |
Recent studies only (k = 2) | − 0193 [− 0.455, 0.069], z = 1.446, p = 0.148 | < 0.001%, p = 0.811 |
All sensitivity data analyses are presented for the combined LB and pregnancy outcome except when separate pregnancy or livebirth outcomes are reported