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Table 3 Associations between self-reported experience of physical abuse in the past 12-months and post-natal depression, birth outcomes, and breast feeding behaviours in South Western Sydney and Sydney Local Health Districts in 2014 (N = 17,564)

From: Intimate partner violence identified through routine antenatal screening and maternal and perinatal health outcomes

     Complete case Multiple imputation.
n N % OR (95% CI) (a) P value OR (95% CI) (b) P value OR (95% CI) (a) P value OR (95% CI) (b) P value
Postnatal depressive symptom
 Experience of domestic violence
  No 826 28,596 2.9 1.00   1.00   1.00   1.00  
  Yes 33 477 6.9 2.50 (1.74–3.58) < 0.001 2.53 (1.76–3.63) < 0.001 3.11 (2.28–4.24) < 0.001 3.11 (2.28–4.24) < 0.001
Low birth weight (< 2500 g)
 Experience of domestic violence.
  No 1627 35,865 4.5 1.00   1.00   1.00   1.00  
  Yes 41 628 6.5 1.47 (1.07–2.03) 0.019 1.34 (0.97–1.85) 0.077 1.70 (1.32–2.20) < 0.001 1.57 (1.21–2.02) 0.001
Gestational age (< 37 weeks)
 Experience of domestic violence.
  No 4311 35,696 12.1 1.00   1.00   1.00   1.00  
  Yes 84 622 13.5 1.14 (0.90–1.43) 0.279 1.09 (0.86–1.38) 0.464 1.32 (1.06–1.64) 0.014 1.26 (1.02–1.57) 0.035
No early initiation of breast feeding
 Experience of domestic violence
  No 3168 31,076 10.2 1.00   1.00   1.00   1.00  
  Yes 88 513 17.2 1.82 (1.45–2.30) < 0.001 1.65 (1.30–2.09) < 0.001 1.90 (1.52–2.37) < 0.001 1.65 (1.31–2.07) < 0.001
Non-EBF at discharge.
 Experience of domestic violence.
  No 3617 34,183 10.6 1.00   1.00   1.00   1.00  
  Yes 103 563 18.3 1.89 (1.52–2.35) < 0.001 1.66 (1.33–2.07) < 0.001 2.01 (1.64–2.47) < 0.001 1.71 (1.39–2.12) < 0.001
Non-EBF at first post-natal visit
 Experience of domestic violence
  No 4633 30,895 15.0 1.00   1.00   1.00   1.00  
  Yes 122 518 23.6 1.75 (1.42–2.14) < 0.001 1.54 (1.24–1.91) < 0.001 1.93 (1.60–2.33) < 0.001 1.66 (1.36–2.02) < 0.001
  1. Notes: (a): Unadjusted Odds Ratio (b): Adjusted for maternal age, socio-economic status, Indigenous status, alcohol consumption during pregnancy, smoking during pregnancy, body mass index, history of antenatal problems, antenatal depression, and intervention during birth