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Table 5 The obstetric outcomes in nulliparous women with diagnosed myoma(s) or a history of myomectomy (Dataset 1)

From: Nationwide population-based cohort study of adverse obstetric outcomes in pregnancies with myoma or following myomectomy: retrospective cohort study

Obstetric outcomes

Odds ratio (95% confidence interval)

Unadjusted

Adjusted b

Cesarean section

Group Aa

1

1

Group Ba

1.386(1.339–1.435)

1.210(1.168–1.253)

Group Ca

8.194(7.502–8.949)

6.908(6.320–7.551)

Preeclampsia

Group A

1

1

Group B

1.289(1.173–1.418)

1.180(1.072–1.298)

Group C

1.353(1.139–1.607)

1.180(0.992–1.403)

PPH

Group A

1

1

Group B

1.045(0.988–1.105)

1.050(0.993–1.111)

Group C

1.037(0.934–1.151)

1.046(0.942–1.162)

Placental abruption

Group A

1

1

Group B

1.113(0.863–1.435)

1.054(0.816–1.361)

Group C

1.015(0.619–1.664)

0.933(0.567–1.533)

Placenta previa

Group A

1

1

Group B

2.008(1.798–2.242)

1.689(1.510–1.890)

Group C

2.672(2.236–3.193)

2.059(1.720–2.466)

Uterine rupture

Group A

1

1

Group B

5.071(1.431–17.972)

4.667(1.295–16.816)

Group C

54.783(23.070–130.090)

48.206(19.239–120.789)

  1. aGroup A, Women who had never been diagnosed with myoma; Group B, Women who had diagnosed myoma(s) but no history of myomectomy; Group C, %) women who had a history of myomectomy
  2. bAdjusted for age
  3. PPH Postpartum hemorrhage