Breastfeeding Rates by Age among Children Born in 2000 (Percent +/- half 95% Confidence Interval)

U.S. National Breastfeeding Rates, 2000
  US National n
Ever breastfeeding 70.9±1.9 12388
Breastfeeding at 7 days 68.2±1.9 12388
Breastfeeding at 14 days 66.4±2.0 12388
Breastfeeding at 21 days 63.3±2.0 12388
Breastfeeding at 28 days 62.1±2.0 12388
Breastfeeding at 42 days 57.7±2.1 12388
Breastfeeding at 1 Month 61.9±2.0 12388
Breastfeeding at 2 Months 56.2±2.1 12388
Breastfeeding at 3 Months 50.5±2.1 12388
Breastfeeding at 4 Months 42.8±2.1 12388
Breastfeeding at 5 Months 37.4±2.1 12388
Breastfeeding at 6 Months 34.2±2.0 12388
Breastfeeding at 9 Months 21.7±1.7 12388
Breastfeeding at 12 Months 15.7±1.5 12388
Breastfeeding at 18 Months 5.5±1.0 12388
Figure 4. Breastfeeding rates by age among children born in 2000.  For data, see above.

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.