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Table 3 Factors independentlya associated with initiation of breastfeeding after adjustment for potential confoundersb (n = 822)

From: Determinants of breastfeeding initiation among mothers in Sydney, Australia: findings from a birth cohort study

Variable   Ever initiated breastfeeding  
AdjORc 95%CI p-value
Sociodemographic factors
 Maternal education
   < Year 12 1.00   
  Year 12 completed 1.36 0.56, 3.31 0.498
  College/TAFE 2.28 0.84, 6.16 0.105
  University 7.16 2.73, 18.79 <0.001
 Mother’s country of birth
  Australia 1.00   
  China 0.75 0.15, 3.74 0.729
  Vietnam 0.34 0.13, 0.87 0.025
  Asia other 1.93 0.41, 9.09 0.406
  Middle East/Africa 1.86 0.51, 6.81 0.348
  Others 0.41 0.17, 1.00 0.050
Biomedical factors
 Parity
  Primiparous 1.00   
  Multiparous 0.38 0.19, 0.79 0.010
 Method of delivery
  Vaginal 1.00   
  Caesarean 0.27 0.14, 0.52 <0.001
 Alcohol drinking status of the mother during pregnancy
  No 1.00   
  Yes 0.28 0.11, 0.71 0.008
Psychosocial factors
 Partner prefers breastfeeding
  No or ambivalent 1.00   
  Yes 11.77 5.73, 24.15 <0.001
 Infant feeding decision made before pregnancy
  No 1.00   
  Yes 2.80 1.31, 5.97 0.008
  1. a All variables in the final model were variables for which, when excluded, the change in deviance compared with the corresponding χ2 test statistic
  2. on the relevant degrees of freedom was significant
  3. b Adjusted for maternal age, marital status, maternal occupation, father’s country of birth, mother’s future employment intentions,
  4. index of relative socioeconomic disadvantage, infant gender, infant birth weight, smoking status of the mother during pregnancy
  5. c AdjOR Adjusted Odds Ratio, 95%CI 95% confidence interval