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Table 3 Adjusted multinomial logistic regression, associations between intrapartum interventions and breastfeeding outcomes in hospital

From: The association between intrapartum interventions and immediate and ongoing breastfeeding outcomes: an Australian retrospective population-based cohort study

  Formula Given in Hospital Last Feed at Breast
N (%) Adjusted OR (95% CI)a P value N (%) Adjusted OR (95% CI) P value
Method of Birth
 Vaginal Birth 92,467 (23.0) 1 330,867 (81.5) 1
 Pre-labour CS 42,667 (38.0) 1.75 (1.72–1.77) < 0.001 81,799 (72.1) 0.66 (0.65–0.67) < 0.001
 In-labour CS 31,488 (41.7) 1.96 (1.93–1.99) < 0.001 53,001 (69.7) 0.65 (0.64–0.66) < 0.001
Epidural Analgesia
 No 112,057 (25.7) 1 353,235 (80.3) 1
 Yes 54,585 (35.4) 1.45 (1.43–1.47) < 0.001 112,460 (72.4) 0.71 (0.70–0.72) < 0.001
Synthetic Oxytocin Infusion
 No 105,774 (25.9) 1 330,523 (80.4) 1
 Yes 60,868 (33.3) 1.24 (1.22–1.26) < 0.001 135,172 (73.3) 0.78 (0.77–0.79) < 0.001
Mutually Exclusive Interventions
 No Intervention 40,360 (18.0) 1 193,968 (85.7) 1 0
 Pre-labour CS only 41,333 (37.7) 2.17 (2.13–2.21) < 0.001 80,226 (72.5) 0.53 (0.52–0.54) < 0.001
 In-labour CS only 7011 (37.0) 2.17 (2.10–2.24) < 0.001 14,178 (74.3) 0.59 (0.57–0.61) < 0.001
 Epidural analgesia only 11,048 (28.3) 1.63 (1.59–1.67) < 0.001 30,834 (78.2) 0.64 (0.62–0.66) < 0.001
Synthetic oxytocin infusion only 17,744 (25.1) 1.30 (1.27–1.33) < 0.001 56,834 (79.2) 0.74 (0.73–0.76) < 0.001
Number of Interventions Received
 None 40,360 (18.0) 1 193,968 (85.7) 1
 One 77,136 (32.4) 1.77 (1.74–1.79) < 0.001 181,612 (75.5) 0.61 (0.60–0.62) < 0.001
 Two 34,989 (36.2) 2.08 (2.04–2.12) < 0.001 69,547 (71.4) 0.52 (0.51–0.53) < 0.001
 Three 14,157 (45.7) 2.90 (2.83–2.98) < 0.001 20,568 (65.8) 0.43 (0.42–0.45) < 0.001
  1. Abbreviation: OR odds ratio, CI confidence interval, CS caesarean section
  2. aAdjusted for parity, maternal BMI, sex of baby, smoking status during pregnancy, SEIFA quintile, infant birth weight, hospital admission status, infant gestational age, country region of birth, marital status and maternal age