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. Author manuscript; available in PMC: 2015 Aug 1.
Published in final edited form as: BJOG. 2014 Feb 28;121(9):1137–1144. doi: 10.1111/1471-0528.12642

Table 3.

Maternal and Neonatal Outcomes based on Actual Delivery Mode Compared to PLC

Maternal Outcomes TOL: Vaginal
n=767
(%)
Unadjusted OR
(95% CI)
Adjusted OR
(95% CI)
TOL:
Cesarean
n=311 (%)
Unadjusted OR
(95% CI)
Adjusted OR
(95% CI
PLC
n=1147
(%)
Abruptio Placentae 5 (0.8) 7.6 (0.9–65.5) 3.3 (0.4–31.9) 5 (2.0) 18.9 (2.2–162.4) 17.6 (2.0–159.0) 1 (0.1)
Estimated Blood Loss
≥ 1000 mL
47 (8.1) 0.2 (0.1–0.3) 0.2 (0.1–0.4) 73 (31.1) 1.1 (0.8–1.5) 1.2 (0.8–1.7) 264 (29.1)
Postpartum Hemorrhage 41 (6.8) 2.6 (1.5–4.5) 2.7 (1.4–5.1) 12 (5.9) 2.3 (1.1–4.8) 2.6 (1.2–5.7) 20 (2.7)
Blood Transfusion 32 (4.5) 1.2 (0.8–2.0) 1.3 (0.7–2.3) 23 (8.7) 2.5 (1.4–4.2) 3.2 (1.8–5.9) 38 (3.7)
Chorioamnionitis 23 (3.8) 18.1 (4.2–77.0) 21.2 (4.6–98.2) 15 (6.1) 29.5 (6.7–130.0) 22.6 (4.8–105.3) 2 (0.2)
Hysterectomy 0 * * 1 (0.3) 1.8 (0.2–20.4) * 2 (0.2)
ICU Admission 1 (0.2) 0.3 (0.03–2.1) 0.4 (0.04–3.7) 0 * * 6 (0.6)
Maternal Death 1 (0.2) * * 0 * * 0
Neonatal Outcomes TOL: Vaginal
n=767 sets
(%)
Unadjusted OR
(95% CI)
Adjusted OR
(95% CI)
TOL:
Cesarean
n=311 sets
(%)
Unadjusted OR
(95% CI)
Adjusted OR
(95% CI)
PLC
n=1147 sets
(%)
Birth Injury
  Twin A 11 (1.4)A * * 0 * * 0
  Twin B 4 (0.5)A * * 0 * * 0
5 minute APGAR < 7
  Twin A 12 (1.6) 2.6 (1.02–6.6) 6.4 (1.5–27.4) 1 (0.3) 0.5 (0.1–4.3) 1.2 (0.1–11.2) 7 (0.6)
  Twin B 16 (2.1) 3.5 (1.4–8.5) 6.1 (1.7–21.4) 1 (0.3) 0.5 (0.1–4.3) 1.0 (0.1–8.9) 7 (0.6)
NICU Admission
  Twin A 97 (12.7) 0.9 (0.7–1.1) 0.9 (0.6–1.3) 57 (18.3) 1.3 (0.97–1.9) 1.3 (0.9–2.0) 164 (14.3)
  Twin B 115 (15.0) 1.1 (0.8–1.4) 1.0 (0.7–1.4) 55 (17.7) 1.3 (0.9–1.8) 1.0 (0.7–1.6) 162 (14.1)
Respiratory Distress
Syndrome
  Twin A 18 (2.4) 1.2 (0.6–2.2) 1.2 (0.5–2.7) 4 (1.3) 0.6 (0.2–1.9) 0.7 (0.2–2.3) 23 (2.0)
  Twin B 25 (3.3) 1.5 (0.8–2.5) 1.5 (0.8–3.0) 6 (1.9) 0.8 (0.3–2.1) 0.6 (0.2–1.8) 26 (2.3)
Transient Tachypnea of
the Newborn
  Twin A 18 (2.4) 0.4 (0.2–0.6) 0.4 (0.2–0.8) 16 (5.1) 0.8 (0.5–1.4) 0.9 (0.5–1.6) 71 (6.2)
  Twin B 21 (2.7) 0.5 (0.3–0.7) 0.3 (0.2–0.6) 21 (6.8) 1.2 (0.7–1.9) 1.0 (0.5–1.8) 67 (5.8)
Neonatal Sepsis
  Twin A 13 (1.7) 1.2 (0.6–2.5) 1.6 (0.6–4.1) 12 (3.9) 2.8 (1.3–6.1) 2.2 (0.9–5.7) 16 (1.4)
  Twin B 12 (1.6) 1.4 (0.6–3.1) 1.3 (0.5–3.2) 7 (2.3) 2.0 (0.8–5.1) 0.9 (0.2–3.3) 13 (1.1)
Neonatal Asphyxia
  Twin A 2 (0.3) 3.0 (0.3–33.1) 6.1 (0.3–107.9) 1 (0.3) 3.7 (0.2–59.3) 5.2 (0.3–88.4) 1 (0.1)
  Twin B 1 (0.1) * * 1 (0.3) * * 0
NICU LOS ≥ median
Twin A ≥ 4.0 days 49 (57.0) 0.7 (0.4–1.2) 1.1 (0.5–2.3) 30 (62.5) 0.9 (0.5–1.7) 0.8 (0.4–2.0) 99 (65.1)
Twin B ≥ 5.0 days 58 (57.4) 1.2 (0.7–2.0) 0.7 (0.4–1.5) 18 (36.7) 0.5 (0.3–1.0) 0.3 (0.1–0.8) 78 (53.1)
Neonatal Death
  Twin A 2 (0.3) * * 0 * * 0
  Twin B 2 (0.3) 1.4 (0.2–10.2) 0.6 (0.1–4.4) 0 * * 2 (0.2)
A

P<0.05

*

Regression model does not fit, due to low outcome occurrence