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Table 4 Maternal outcomes, by fetal presentation of the second twin

From: Outcomes of non-vertex second twins, following vertex vaginal delivery of first twin: a secondary analysis of the WHO Global Survey on Maternal and Perinatal Health

 

Non-vertex n/N, (%) N = 369

Vertex n/N, (%) 1,055

Crude odds ratio (95% CI)

Adjusted odds ratioa(95% CI)

Maternal death

0/369 (0.0)

1/1055 (0.1)

*

*

ICU admission

17/369 (4.6)

18/1055 (1.7)

2.78 (1.42 – 5.45)

1.30 (0.88 – 1.94)

Blood transfusion

22/369 (6.0)

35/1055 (3.4)

1.84 (1.07 – 3.18)

1.23 (0.67 – 2.25)

Hysterectomy

0 / 369 (0.0)

0/1055 (0.0)

*

*

3rd/4th degree perineal laceration

5/369 (1.4)

20/1055 (1.9)

0.71 (0.27 – 1.91)

*

  1. *Cannot calculate odds ratios as too few cases.
  2. 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; facility and country as random effects.