Table 2.
Comparison of perinatal outcomes in patients with live singleton births with and without a vanishing twin (n = 4049).
| Parameter | Group 1 (n = 853) | Group 2 (n = 3196) | OR (95% CI) | p |
|---|---|---|---|---|
| Mode of delivery | 0.81 | |||
| Vaginal | 444 (52.1%) | 1717 (53.7%) | 0.94 (0.54–1.63) | |
| Cesarean | 409 (47.9%) | 1479 (46.2%) | ||
| Term birth | 771 (90.4%) | 2897 (90.6%) | 0.98 (0.38–2.51) | 0.82 |
| Preterm birth | 50 (5.86%) | 0.95 | ||
| Late preterm | 32 (3.75%) | 225 (7.04%) | 0.52 (0.07–3.69) | |
| Early preterm | 74 (2.32%) | |||
| Overall birth weight (g) | 3279.5 (±369.9) | 3368.6 (±567.5) | – | <0.01 |
| Overall LBW | 99 (11.6%) | 223 (6.98%) | 1.75 (1.36–2.25) | <0.01 |
| Overall VLBW | 11 (1.29%) | 28 (0.88%) | 1.47 (0.10–22.4) | 0.27 |
| Term LBW | 33 (4.28%) | 37 (1.28%) | 3.44 (2.14–5.53) | <0.01 |
LBW: low birth weight; VLBW: very low birth weight; OR: odds ratio; CI: confidence interval.
Group 1: with vanishing twin; Group 2: without vanishing twin.
Data are presented as mean ± standard deviation, median (interquartile range), and n (%).