Table 1.
Outcomes | Included studies (n) | Sample size, n (min/max) | Studies by geographic region, n (developed/LMICs) | Externally validated studies (n) |
---|---|---|---|---|
Preterm birth |
71 |
31 / 15 883 784 |
68 / 3 |
7 |
LBW |
17 |
97 / 27 233 |
12 / 5 |
0 |
Small for gestational age |
23 |
41 / 116 070 |
23 / 0 |
1 |
Stillbirth |
9 |
180 / 76 629 |
9 / 0 |
1 |
Composite adverse birth outcome | 6 | 31 / 549 | 5 / 1 | 1 |
LBW – low birth weight, LMICs – low- and middle-income countries, max – maximum, min – minimum