Evaluation of the impact of breast milk expression in early postpartum period on breastfeeding duration: a prospective cohort study

Table 3 Associated risk factors to breastfeeding outcomes in women who breastfed more than 6 weeks

Variables	6 weeks ≤ breastfeeding <6 months (n = 340)^b		6 weeks ≤ breastfeeding <10 months (n = 340)^b		Breastfeeding duration (n = 345)
Variables	Adjusted^a OR (95 % CI)	P	Adjusted^a OR (95 % CI)	P	Adjusted^a RR (95 % CI)	P
Breast milk expressing pattern at 6 weeks		0.02		0.73		0.003
Exclusive expressing (group 3)	2.76 (1.33–5.72)	0.01	2.71 (0.78–9.37)	0.12	1.77 (1.25–2.48)	0.001
Combining direct breastfeeding with expressing (group 2)	1.38 (0.74–2.59)	0.31	0.99 (0.44–2.24)	0.99	1.08 (0.82–1.43)	0.58
Direct breastfeeding (group 1)	Reference		Reference		Reference
Breast milk expression in hospital	0.80 (0.45–2.36)	0.80	0.96 (0.34–2.75)	0.94	0.85 (0.57–1.27)	0.44
Bottle-feeding in hospital	0.90 (0.38–2.13)	0.96	1.66 (0.55–5.04)	0.37	0.98 (0.63–1.51)	0.91
Maternity leave >6 months	0.6 (0.02–0.17)	<0.001	0.16 (0.08–0.31)	<0.001	0.38 (0.28–0.52)	<0.001
Exclusive breastfeeding at 6 weeks	0.89 (0.53–1.49)	0.65	1.69 (0.85–3.37)	0.13	1.09 (0.86–1.40)	0.48

^aMultiple logistic regression and Cox regression (enter method) were adjusted by expressing patterns at 6 weeks postpartum, expressing in hospital, bottle-feeding in hospital, maternity leave, partial breastfeeding at 6 weeks postpartum, parity, delivery method, education level, mother’s age, baby gender and birth weight
^bAmong 340 women who breastfed more than 6 weeks, 199 mothers continued breastfeeding beyond 6 months postpartum, and 56 mothers continued breastfeeding beyond 10 months

ISSN: 1471-2393