Chapter 3. Infant Feeding

Table 3.100. Percent of babies whose bottle nipples used to feed formula were cleaned in each way and at each frequency in the past 2 weeks by infant age¹, among formula fed babies Infant Feeding Practices Study II
		N	Never	Some of the time	Most of the time	All of the time	Total (%)
Boiled or sterilized	Month 2	1,454	46.6	27.2	10.7	15.4	100
	Month 5	1,343	55.2	24.5	8.1	12.2	100
	Month 7	1,281	61.4	22.0	6.8	9.8	100
	Month 9	1,268	64.9	22.1	5.0	8.0	100
Not cleaned between uses	Month 2	1,420	95.0	4.2	0.3	0.5	100
	Month 5	1,321	95.8	3.6	0.3	0.3	100
	Month 7	1,272	95.0	4.6	0.2	0.2	100
	Month 9	1,256	94.5	5.3	0.2	0.0	100
Rinsed with water only	Month 2	1,433	67.1	24.7	4.6	3.6	100
	Month 5	1,330	66.1	26.8	4.4	2.7	100
	Month 7	1,283	68.5	24.8	4.2	2.5	100
	Month 9	1,276	66.5	27.6	4.3	1.6	100
Washed by hand with dish detergent	Month 2	1,482	17.9	18.4	24.8	38.9	100
	Month 5	1,368	17.8	19.6	25.0	37.6	100
	Month 7	1,333	17.7	23.1	23.9	35.3	100
	Month 9	1,304	18.1	24.2	22.8	34.9	100
Washed in an automatic dish washer	Month 2	1,468	52.8	18.4	13.4	15.4	100
	Month 5	1,373	51.0	17.3	15.1	16.6	100
	Month 7	1,310	46.6	18.9	17.6	16.9	100
	Month 9	1,300	45.6	17.5	18.8	18.2	100
¹Table is based on variables: M2E21A-E, M5E7A-E, M7E5A-E, M9E4A-E