Breastfeeding Rates by Age among Children Born in 2003(Percent +/- half 95% Confidence Interval)
U.S. National Breastfeeding Rates, 2003
Child Age Breastfeeding
(n=29256)
At birth 72.6±0.9
7 days 71.0±0.9
14 days 69.4±0.9
21 days 67.0±0.9
28 days 65.8±0.9
42 days 61.3±0.9
1 month 65.2±0.9
2 month 58.5±0.9
3 month 53.6±0.9
4 month 46.5±0.9
5 month 41.8±0.9
6 month 39.1±0.9
9 month 26.2±0.8
12 month 19.6±0.8
18 month 7.0±0.5

Source: National Immunization Survey, Centers for Disease Control and Prevention, Department of Health and Human Services

Sample sizes appearing in the NIS breastfeeding tables are slightly smaller than the numbers published in other NIS publications due to the fact that in the DNPAO breastfeeding analyses, the sample was limited to records with valid responses to the breastfeeding questions.