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Table 2 Characteristics of vaginal delivery divided into MC-DA and DC-DA pregnancies

From: Mode of birth in monochorionic versus dichorionic twin pregnancies: a retrospective study from a large tertiary centre in Germany

  

Vaginal delivery

(n = 132)

 

MC/DA

(n = 22)

DC/DA

(n = 110)

Odds Ratio

(95% CI)

p

Age

31.5 (22–40)

32.0 (21–43)

 

0.905

Parity

1 (0–2)

1 (0–4)

 

0.415

BMI before pregnancya (kg/m2)

22.74 (19.1–34.0)

22.94 (18.3–46.3)

 

0.940

BMI before deliveryb (kg/m2)

28.68 (23.8–40.7)

29.30 (22.6–46.6)

 

0.873

Gestational age at delivery (weeks)

38 (36–41)

38 (36–41)

 

0.885

pH

 1st twinc

7.26 (7.12–7.41)

7.29 (7.03–7.40)

 

0.502

 2nd twinc

7.27 (7.09–7.35)

7.23 (7.02–7.36)

 

0.105

Acidosis (%)

 1st twinc

3 (13.6)

11 (10.2)

1.392 (0.355–5.469)

0.705

 2nd twinc

3 (13.6)

37 (34.3)

0.303 (0.084–1.091)

0.056

 any twinf

5 (22.7)

41 (38.3)

0.473 (0.162–1.381)

0.164

Apgar 5′

    

 1st twin

9 (4–10)

9 (2–10)

 

0.654

 2nd twin

9 (3–10)

9 (6–10)

 

0.171

Apgar < 7 5′(%)

 1st twin

1 (4.5)

1 (0.9)

5.190 (0.312–86.290)

0.307

 2nd twin

1 (4.5)

2 (1.8)

2.571 (0.223–29.666)

0.424

 any twin

1 (4.5)

3 (2.7)

1.698 (0.168–17.128)

0.522

Birth weight (g)

 1st twin

2605 (2120-3350)

2625 (1890-3640)

 

0.903

 2nd twin

2570 (1878-3270)

2605 (1900-3730)

 

0.330

Admission to NICU (%)

 1st twind

1 (4.8)

2 (1.8)

2.700 (0.234–31.208)

0.411

 2nd twine

2 (9.5)

8 (7.3)

1.329 (0.262–6.750)

0.664

 any twine

3 (14.3)

10 (9.2)

1.650 (0.413–6.588)

0.440

Intubation (%)

 1st twind

0 (0)

0 (0)

 

 2nd twine

0 (0)

0 (0)

 

CPAP (%)

 1st twind

1 (4.8)

2 (1.8)

 

0.411

 2nd twine

2 (9.5)

8 (7.3)

 

0.664

Blood loss at deliveryf (ml)

500 (200–2500)

400 (200–3000)

 

0.064

Blood loss > 1 l (%)

6 (27.3)

21 (19.1)

 

0.393

  1. Medians, ranges and percentages were estimated
  2. a: 4 (DC/DA) unknown cases which are not taken into account
  3. b: 5 (DC/DA) unknown cases which are not taken into account
  4. c: 2 (DC/DA) unknown cases which are not taken into account
  5. d: 1 (MC/DA) unknown case which is not taken into account
  6. e: 1 (MC/DA) and 1 (DC/DA) unknown cases which are not taken into account
  7. f: 3 (DC/DA) unknown cases which are not taken into account