Provisional Breastfeeding Rates by Socio-demographic Factors, Among Children Born in 2007 (Percent +/- half 95% Confidence Interval)
Socio-demographic Factors n Ever
Breastfeeding		 Breastfeeding1
at 6 Months		 Breastfeeding1
at 12 Months
US National 16629 75.0±1.2 43.0±1.3 22.4±1.1
Sex
  Male 8538 75.4±1.6 42.6±1.8 22.0±1.5
  Female 8091 74.6±1.7 43.5±1.9 22.8±1.7
Race/ethnicity
  American Indian or Alaska Native 552 73.8±6.9 42.4±8.8 20.7±7.0
  Asian or Pacific Islander 1077 83.0±5.2 56.4±6.3 32.8±6.5
    -Asian 886 86.4±5.7 58.6±7.1 34.8±7.5
    -Native Hawaiian and other 239 72.4±11.1 45.3±12.1 23.9±10.8
  Black or African American 2606 59.7±2.9 27.9±2.5 12.9±1.9
  White 13425 77.7±1.2 45.1±1.5 23.6±1.3
  Hispanic or Latino 2895 80.6±2.4 46.0±3.1 24.7±2.8
  Not Hispanic or Latino (NH) 13734 72.8±1.3 41.9±1.4 21.5±1.2
    -NH Black or African American 2309 58.1±3.1 27.5±2.7 12.5±1.9
    -NH White 10937 76.2±1.4 44.7±1.5 23.3±1.3
Birth Order
  First Born 8834 74.5±1.6 44.1±1.8 23.7±1.6
  Not First Born 7795 75.6±1.6 41.8±1.9 20.8±1.7
Receiving WIC2
  Yes 6814 67.5±1.8 33.7±2.0 17.5±1.7
  No, but eligible 939 77.5±4.7 48.2±5.7 30.7±5.4
  Ineligible 8143 84.6±1.4 54.2±1.9 27.6±1.6
Maternal Age, Years
  <20 360 59.7±7.9 22.2±7.5 10.7±5.7
  20-29 5449 69.7±2.1 33.4±2.1 16.1±1.7
  >=30 10820 79.3±1.4 50.5±1.7 27.1±1.6
Maternal Education
  Not a High School Graduate 1808 67.0±3.4 37.0±3.8 21.9±3.5
  High School Graduate 3056 66.1±2.5 31.4±2.5 15.1±2.0
  Some College 4290 76.5±2.1 41.0±2.5 20.5±2.2
  College Graduate 7475 88.3±1.1 59.9±1.8 31.1±1.7
Maternal Marital Status
  Married 12444 81.7±1.3 51.6±1.6 27.5±1.5
  Unmarried3 4185 61.3±2.4 25.5±2.3 11.9±1.8
Residence
  MSA4, Central City 7163 75.5±1.8 43.9±2.1 24.4±2.0
  MSA, Non-Central City 6004 77.9±1.7 45.3±2.1 22.3±1.8
  Non-MSA 3462 66.4±2.9 35.0±2.6 17.4±2.0
Poverty Income Ratio5, %
  <100% 3196 67.0±2.7 34.7±3.0 19.0±2.7
  100%-184% 2520 71.2±2.8 36.9±3.0 18.9±2.4
  185%-349% 3745 77.7±2.4 45.0±2.7 23.9±2.2
  ≥350% 5755 84.4±1.7 54.0±2.2 26.7±2.0

1Breastfeeding with or without the addition of complementary liquids or solids
2WIC = Special Supplemental Nutrition Program for Women, Infants, and Children.
3Unmarried includes never married, widowed, separated, divorced.
4MSA = Metropolitan Statistical Area defined by the Census Bureau.
5Poverty Income Ratio = Ratio of self-reported family income to the federal poverty threshold value depending on the number of people in the household.

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.