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

Table 3 Factors independently^a associated with initiation of breastfeeding after adjustment for potential confounders^b (n = 822)

Variable		Ever initiated breastfeeding
Variable	AdjOR^c	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

^a All variables in the final model were variables for which, when excluded, the change in deviance compared with the corresponding χ² test statistic
on the relevant degrees of freedom was significant
^b Adjusted for maternal age, marital status, maternal occupation, father’s country of birth, mother’s future employment intentions,
index of relative socioeconomic disadvantage, infant gender, infant birth weight, smoking status of the mother during pregnancy
^c AdjOR Adjusted Odds Ratio, 95%CI 95% confidence interval

ISSN: 1746-4358