Breastfeeding Rates by Socio-demographic Factors, Among Children Born in 2004
(Percent +/- half 95% Confidence Interval)
Socio-demographic Factors n Ever
Breastfeeding		 Breastfeeding1
at 6 Months		 Breastfeeding1
at 12 Months
US National 30975 73.1±0.8 42.1±0.9 21.4±0.8
Sex
  Male 15854 72.6±1.2 41.2±1.3 20.6±1.1
  Female 15121 73.6±1.2 42.9±1.3 22.2±1.1
Race/ethnicity
  American Indian or Alaska Native 1056 75.1±4.3 40.8±5.4 23.0±4.6
  Asian or Pacific Islander 2106 80.8±2.9 52.4±3.8 29.2±3.4
    -Asian 1814 80.3±3.2 54.2±4.0 30.5±3.7
    -Native Hawaiian and other 369 83.0±7.0 43.6±9.9 25.4±8.1
  Black or African American 4999 59.2±2.2 29.7±2.1 13.5±1.5
  White 24577 75.6±0.9 43.8±1.0 22.5±0.9
  Hispanic or Latino 6847 80.3±1.6 45.4±2.1 24.6±1.9
  Not Hispanic or Latino (NH) 24128 70.4±1.0 40.8±1.0 20.2±0.8
    -NH Black or African American 4237 55.7±2.4 28.0±2.2 12.5±1.6
    -NH White 18822 73.5±1.1 43.0±1.1 21.4±0.9
Birth Order
  First Born 16287 73.0±1.2 43.8±1.3 23.2±1.1
  Not First Born 14688 73.2±1.2 40.1±1.3 19.4±1.1
Receiving WIC2
  Yes 13630 65.7±1.3 33.5±1.4 16.9±1.1
  No, but eligible 1481 77.9±3.5 52.2±4.2 31.2±4.0
  Ineligible 14393 82.1±1.0 51.6±1.3 25.4±1.1
Maternal Age, Years
  <20 697 53.5±6.4 18.2±5.0 9.3±4.0
  20-29 11261 69.0±1.4 34.9±1.5 17.0±1.3
  >=30 19017 77.1±1.0 48.6±1.2 25.2±1.0
Maternal Education
  Not a High School Graduate 3838 66.6±2.4 36.6±2.6 20.3±2.2
  High School Graduate 6618 64.5±1.8 31.7±1.7 16.3±1.4
  Some College 7528 74.7±1.5 41.7±1.8 19.5±1.5
  College Graduate 12991 85.5±0.9 56.8±1.3 28.6±1.2
Maternal Marital Status
  Married 23349 79.2±0.9 48.5±1.1 24.9±1.0
  Unmarried3 7626 58.7±1.8 26.7±1.7 13.1±1.3
Residence
  MSA4, Central City 14539 74.5±1.3 44.0±1.4 22.7±1.2
  MSA, Non-Central City 10792 74.9±1.3 43.6±1.5 22.1±1.3
  Non-MSA 5644 64.7±2.1 33.2±1.9 16.0±1.5
Poverty Income Ratio5, %
  <100% 5488 65.4±2.1 35.4±2.1 18.7±1.8
  100%-184% 4916 69.1±2.2 36.2±2.3 18.1±1.9
  185%-349% 7223 75.2±1.7 43.2±1.9 21.9±1.5
  ≥350% 10131 81.5±1.2 50.2±1.6 23.7±1.3

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.