Table 2.

Duration of full breastfeeding in weeks in children with paediatric cancer and controls

	Cases		Controls		%	OR
	n	%	n	95% CI
Bottle-feeding only†	65	34.8	43	23.0	1.8†	1.1–2.8
Full breastfeeding
Less than 8 weeks	41	21.9	40	21.4	0.7	0.4–1.2
8–15 weeks	30	16.0	33	17.6	0.6	0.3–1.1
16–23 weeks	28	15.0	39	20.9	0.5	0.3–0.9
24 weeks or more	23	12.3	32	17.1	0.5	0.2–0.9
At least 2 months	81	43.3	104	55.6	0.5	0.3–0.8
At least 4 months	51	27.3	71	38.0	0.5	0.3–0.8

^†Odds ratio of bottle-feeding in cases versus controls.