Skip to main content

Table 3 Adjusted models of perinatal outcomes in multivariate regression analyses by length of the second stage of labor

From: Association between the second-stage duration of labor and perinatal outcomes in women with a prior cesarean delivery

 

Nonadjusted model

Adjusted modelc

Length of the second stageb

0.5–2.0 h (n = 559)

≥2.0 h (n = 81)

0.5–2.0 h (n = 559)

≥2.0 h (n = 81)

Mode of delivery

 Operative vaginal

2.03 (1.10–3.74)

10.61 (5.22–21.57)

1.97 (1.05–3.69)

11.34 (5.06–25.41)

 Cesarean section

1.32 (0.53–3.31)

11.43 (4.52–28.96)

0.63 (0.22–1.80)

4.22 (1.32–13.43)

Maternal outcomes

 PPH

1.54 (1.08–2.18)

2.95 (1.69–5.15)

1.39 (0.96–2.02)

2.43 (1.31–4.50)

 Blood loss at 24 h (ml)a

32.54 (3.49–61.60)

116.68 (59.43–173.94)

22.47 (7.19–52.13)

86.89 (27.15–146.64)

 Hb decreased (g/L)a

2.38 (0.99–3.78)

6.63 (3.89–9.37)

1.87 (0.43–3.31)

5.74 (2.85–8.64)

 Oxytocin used (U)a

1.52 (−0.21–3.25)

12.29 (8.88–15.69)

0.21 (−1.47–1.89)

8.20 (4.82–11.59)

 Red blood cell transfusion

1.24 (0.61–2.51)

1.93 (0.62–6.01)

1.04 (0.49–2.21)

1.32 (0.38–4.56)

 Uterine rupture

0.13 (0.02–1.10)

0.94 (0.11–7.75)

0.14 (0.02–1.25)

0.95 (0.09–10.45)

Neonatal outcomes

 1-min Apgar score ≤ 7

0.41 (0.10–1.58)

1.91 (0.39–9.34)

0.38 (0.09–1.71)

1.36 (0.22–8.49)

 Neonatal asphyxia

0.32 (0.06–1.57)

1.10 (0.13–9.26)

0.18 (0.03–1.10)

0.44 (0.03–7.56)

 Infection

2.57 (1.13–5.85)

2.53 (0.66–9.74)

2.00 (0.84–4.75)

0.91 (0.21–4.04)

 NICU

1.61 (0.78–3.34)

2.26 (0.71–7.18)

1.33 (0.62–2.83)

1.13 (0.32–4.04)

  1. PPH Postpartum hemorrhage, Hb Hemoglobin, NICU Neonatal intensive care unit, CI Confidence interval
  2. aContinuous variables are presented as β (95% CI); other variables are presented as OR (95% CI)
  3. bReference comparison group: Women with second stage of labor between 0 and 0.5 h
  4. cAdjusting for maternal age, BMI, level of education, gestational weeks at delivery, PROM, HDP, GDM, induction, epidural anesthesia, and the length of first stage of labor and birthweight
Back to article page

BMC Pregnancy and Childbirth

ISSN: 1471-2393

Contact us