Table 2.
d [95% CI OR] | Heterogeneity (I2) | |
---|---|---|
Pregnancy scan only (k = 9) | − 0.104 [− 0.199, − 0.008], z = 2.122, p = 0.034 | < 0.001%, p = 0.647 |
First ART (k = 9) | − 0.086 [− 0.186, 0.013], z = 1.699, p = 0.089 | < 0.001%, p = 0.775 |
Single cycle (k = 10) | − 0.061 [− 0.154, 0.032], z = 1.277, p = 0.202 | < 0.001%, p = 0.488 |
IVF only (k = 8) | − 0.132 [− 0.318, 0.054], z = 1.393, p = 0.164 | 18.128%, p = 0.287 |
IVF and ICSI mixed (k = 5) | − 0.079 [− 0.187, 0.029], z = 1.439, p = 0.150 | < 0.001%, p = 0.600 |
High quality (k = 6) | − 0.096 [− 0.207, 0.015], z = 1.693, p = 0.091 | < 0.001%, p = 0.674) |
Recent only (k = 6) | − 0.061 [− 0.170, 0.048], z = 1.097, p = 0.273 | < 0.001%, p = 0.747 |
All sensitivity data analyses are presented for the combined LB and pregnancy outcome except when separate pregnancy or livebirth outcomes are reported