Breastfeeding Duration: A Survival Analysis—Data from a Regional Immunization Survey

Table 4

Results of Cox’s proportional hazards models (HRs, 95% CI) for discontinuing any and exclusive BF, 𝑃 values.

Variables in the model	Any breastfeeding (𝑛=303)			Exclusive BF (𝑛=286)
	aHR	95% CI	𝑃 value	aHR	95% CI	𝑃 value
Mother’s native nationality
Belgian	1		0.006	1		0.002
Foreign	0.7	0.5–0.9		0.6	0.5–0.8
Prenatal maternal intention
Yes	0.8	0.6–1.0	0.04	0.7	0.6–0.9	0.02
No	1			1
Awareness of WHO recommendation
Yes	0.5	0.4–0.7	<0.001	0.7	0.6–1.0	0.03
No	1			1
Age of infant when mother returned to work
≤3 months	1			1
>3 months	0.4	0.3–0.5	<0.001	0.6	0.4–0.8	0.002
Unemployed	0.5	0.4–0.7	<0.001	0.7	0.5–1.1	0.09
BF at discharge from maternity unit
Exclusive	0.5	0.3–0.7	<0.001
Partial	1
Mother’s age
16–29	1			1
30–47	0.7	0.5–0.9	0.02	0.9	0.7–1.2	0.7
Partner’s attitude
Positive	0.7	0.5–1.0	0.02	0.8	0.6–1.2	0.3
Indifferent/negative	1			1
Household income (Euros)
≤2000	1			1
>2000	1.0	0.8–1.4	0.7	0.8	0.6–1.0	0.1
Month of birth
May–September	0.8	0.6–1.0	0.06	0.8	0.6–1.0	0.08
October-November	1			1
First-born infant
Yes	1			1
No	0.9	0.7–1.1	0.2	0.9	0.7–1.1	0.3