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Table 2 Obstetric interventions and maternal outcomes, planned home and hospital birth in low-risk women

From: Effect of planned place of birth on obstetric interventions and maternal outcomes among low-risk women: a cohort study in the Netherlands

  Nulliparous (n = 1585) Parous (n = 1910)
No of events/births Incidence (%) Crude OR (95 % CI) Adjusted OR (95 % CI)a No of events/births Incidence (%) Crude OR (95 % CI) Adjusted OR (95 % CI)a
Spontaneous birth
  Planned home birth 651/868 75.0 1.31 (1.05–1.65)* 1.38 (1.08–1.76)* 1164/1182 98.5 2.30 (1.25–4.25)* 2.29 (1.21–4.36)*
  Planned hospital birth 498/717 69.5 1 1 703/728 96.6 1 1
 Vacuum/forceps birth c
  Planned home birth 156/868 18.0 0.83 (0.64–1.06) 0.77 (0.60–1.01) 11/1182 0.9 0.52 (0.23–1.16) 0.46 (0.20–1.07)b
  Planned hospital birth 150/717 20.9 1 1 13/728 1.8 1 1
 Unplanned caesarean section
  Planned home birth 61/868 7.0 0.74 (0.51–1.07) 0.72 (0.48–1.09) 7/1182 0.6 0.35 (0.14–0.91)* 0.42 (0.16–1.10)b
  Planned hospital birth 69/717 9.6 1 1 12/728 1.7 1 1
 Episiotomy
  Planned home birth 319/856 37.3 0.81 (0.65–1.00) 0.73 (0.58–0.91)* 74/1182 6.3 0.49 (0.35–0.69)* 0.47 (0.33–0.68)*
  Planned hospital birth 299/713 41.9 1 1 89/727 12.2 1 1
 Labour augmentation: oxytocin
  Planned home birth 208/868 24.0 0.77 (0.60–0.99)* 0.81 (0.62–1.05) 50/1182 4.2 0.49 (0.33–0.73)* 0.55 (0.36–0.82)*
  Planned hospital birth 202/717 28.2 1 1 60/728 8.2 1 1
 Use of oxytocin in the third stage of labour
  Planned home birth 694/857 81.0 0.62 (0.45–0.84)* 0.58 (0.42–0.80)* 739/1181 62.6 0.45 (0.36–0.57)* 0.47 (0.37–0.60)*
  Planned hospital birth 616/713 86.4 1 1 549/727 75.5 1 1
Maternal outcomes
 Intact perineum
  Planned home birth 220/856 25.7 0.87 (0.69–1.11) 0.91 (0.71–1.18) 575/1182 48.7 1.55 (1.28–1.89)* 1.65 (1.34–2.03)*
  Planned hospital birth 210/713 29.5 1 1 285/727 39.2 1 1
 Anal sphincter damage (third-or fourth degree)
  Planned home birth 45/856 5.3 1.67 (0.99–2.81) 1.75 (1.01–3.03)*b 17/1182 1.4 0.74 (0.36–1.52) 0.73 (0.34–1.58)b
  Planned hospital birth 23/713 3.2 1 1 14/727 1.9 1 1
 Haemorrhage postpartum >1000 ml
  Planned home birth 65/847 7.7 1.21 (0.81–1.82) 1.03 (0.67–1.59) 28/1180 2.4 0.67 (0.38–1.19) 0.68 (0.38–1.23)b
  Planned hospital birth 46/708 6.5 1 1 24/725 3.3 1 1
  1. Multilevel analysis of obstetric interventions and maternal outcomes
  2. *p < 0.05
  3. aAdjusted for maternal age, gestational age, ethnic background (Dutch/western background/non-western background), Body Mass Index (BMI), socio-economic position
  4. bAdjusted for maternal age, ethnic background (Dutch/non-Dutch) and BMI if there were less than 90 cases to take account to the rule of ten events per variable
  5. cIf caesarean section after failed vacuum or forceps, this was analyzed as caesarean section, N = 18