Table 5.
Perinatal outcomes, by fetal presentation of the second twin
| Non-vertex n/N, (%) N = 369 | Vertex n/N, (%) 1,055 | Crude odds ratio (95% CI) | Adjusted odds ratio a (95% CI) | |
|---|---|---|---|---|
| Stillbirth |
28/369 (7.6) |
50/1055 (4.7) |
1.65 (1.02 – 2.66) |
1.15 (0.72 – 1.73) |
| Early neonatal mortality |
14/369 (3.8) |
22/1055 (2.1) |
1.86 (0.94 – 3.67) |
1.68 (0.96 – 2.94) |
| Apgar score <7 at 5 minutes |
59/369 (16.0) |
120/1050 (11.4) |
1.48 (1.05 – 2.07) |
1.42 (1.01 – 2.00)* |
| Admission to NICU | 98/369 (26.6) | 245/1055 (23.2) | 1.20 (0.91 – 1.58) | 0.93 (0.62 – 1.39) |
aGeneralized linear mixed models adjusted for: maternal age (<20, 20-35, >35), maternal education (0, 1-4, 5-9, > = 10), parity, (0, 1-2, > = 3), antenatal visits (0, 1-3, > = 4), mode of delivery (vaginal or caesarean), hypertensive diseases (chronic or pregnancy-induced hypertension), malaria, other medical diseases (HIV, pregestational diabetes, cardiac/renal disease, chronic respiratory conditions, sickle cell anaemia), prelabour rupture of membranes, pre-eclampsia/eclampsia, vaginal bleeding in 2nd half of pregnancy and urine infection/pyelonephritis, sex, sex discordance (yes/no), gestational age (<37 or > =37 weeks), birthweight (<2500 g or > =2500 g) and birthweight discordance (<15%, larger twin of >15% birthweight discordant pair, smaller twin of >15% birthweight discordant pair); country and facility as random effects.