Final Breastfeeding Rates by Socio-demographic Factors, Among Children Born in 2006 (Percent +/- half 95% Confidence Interval)
Socio-demographic Factors n Ever
Breastfeeding		 Breastfeeding1
at 6 Months		 Breastfeeding1
at 12 Months
US National 24866 74.0±0.9 43.5±1.1 22.7±0.9
Sex
  Male 12834 73.4±1.3 43.2±1.5 21.9±1.2
  Female 12032 74.6±1.3 43.8±1.5 23.5±1.3
Race/ethnicity
American Indian or Alaska Native 800 71.1±5.6 39.8±6.2 20.0±5.7
Asian or Pacific Islander 1582 82.8±3.0 55.6±4.4 34.7±4.6
    -Asian 1292 83.7±3.3 57.2±4.8 36.1±5.1
    -Native Hawaiian and other 362 80.2±6.6 48.4±9.5 29.6±9.8
  Black or African American 3801 59.7±2.5 30.5±2.3 13.4±1.6
  White 20091 76.6±1.0 45.5±1.2 23.9±1.0
  Hispanic or Latino 4552 81.2±1.9 47.6±2.5 25.6±2.3
  Not Hispanic or Latino (NH) 20314 71.3±1.1 42.0±1.1 21.6±0.9
    -NH Black or African American 3357 56.2±2.7 28.7±2.4 12.9±1.7
    -NH White 16189 74.4±1.2 44.6±1.3 23.2±1.0
Birth Order
  First Born 13012 73.9±1.3 46.1±1.5 24.7±1.3
  Not First Born 11854 74.0±1.4 40.5±1.5 20.4±1.2
Receiving WIC2
  Yes 10317 67.1±1.5 33.7±1.6 17.4±1.3
  No, but eligible 1293 74.1±3.9 50.1±4.5 31.7±4.1
  Ineligible 12123 82.4±1.3 54.1±1.5 27.7±1.3
Maternal Age, Years
  <20 481 58.4±7.0 21.7±6.3 9.0±4.7
  20-29 8204 69.5±1.7 34.4±1.8 17.4±1.5
  >=30 16181 77.6±1.1 50.4±1.3 26.7±1.2
Maternal Education
  Not a High School Graduate 2689 67.5±2.7 36.7±3.0 20.2±2.5
  High School Graduate 4742 65.6±2.1 33.5±2.1 17.3±1.7
  Some College 6686 75.0±1.6 42.1±1.9 21.7±1.7
  College Graduate 10749 86.4±1.0 59.4±1.5 30.7±1.4
Maternal Marital Status
  Married 18816 80.1±1.0 50.6±1.2 26.8±1.1
  Unmarried3 6050 60.4±2.0 27.5±2.0 13.5±1.6
Residence
  MSA4, Central City 10609 75.5±1.5 44.9±1.7 24.4±1.5
  MSA, Non-Central City 9006 76.1±1.5 45.4±1.7 23.2±1.4
  Non-MSA 5251 64.6±2.2 34.7±2.2 16.9±1.6
Poverty Income Ratio5, %
  <100% 4495 66.2±2.2 34.8±2.4 18.0±1.9
  100%-184% 3898 69.3±2.4 38.0±2.6 22.0±2.3
  185%-349% 5769 75.5±2.0 46.4±2.2 23.5±1.8
  ≥350% 8550 82.2±1.5 52.0±1.8 25.8±1.5

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.