Provisional Breastfeeding Rates by Socio-demographic Factors, Among Children Born in 2006 (Percent +/- half 95% Confidence Interval)
Socio-demographic Factors Number Ever
Breastfeeding		 Breastfeeding1
at 6 Months		 Breastfeeding1
at 12 Months
US National 16985 73.9±1.1 43.4±1.3 22.7±1.1
Sex
Male 8785 74.2±1.6 43.6±1.8 22.1±1.5
Female 8200 73.7±1.6 43.1±1.8 23.4±1.5
Race/ethnicity
American Indian or Alaska 558 69.9±7.0 38.5±7.5 21.8±7.6
Asian or Pacific Islander 1111 83.1±3.6 55.1±5.3 35.1±5.6
 Asian 915 84.4±3.9 57.2±5.8 37.2±6.2
 Native Hawaiian and other 252 78.2±8.5 46.2±10.7 27.4±10.4
Black or African American 2649 59.9±3.0 29.3±2.8 12.9±1.8
White 13619 76.5±1.3 45.8±1.5 24.1±1.2
Hispanic or Latino 3232 82.1±2.2 48.5±3.0 27.2±2.8
Not Hispanic or Latino (NH) 13753 70.8±1.3 41.5±1.4 21.0±1.1
 NH Black or African American 2316 56.5±3.2 27.5±2.9 12.3±1.9
 NH White 10867 73.8±1.5 44.3±1.6 22.6±1.2
Birth Order
First Born 8803 73.6±1.6 45.4±1.8 23.8±1.6
Not First Born 8182 74.4±1.6 41.0±1.8 21.5±1.5
>Receiving WIC2
Yes 7144 66.7±1.8 34.2±1.9 17.7±1.6
No, but eligible 866 77.2±4.4 48.5±5.3 30.2±4.7
Ineligible 8185 82.6±1.6 53.3±1.8 27.4±1.6
Maternal Age, Years
<20 361 55.6±8.0 24.0±7.4 7.8±4.0
20-29 5784 69.2±2.0 34.1±2.1 17.3±1.8
>=30 10840 78.0±1.4 50.4±1.6 27.0±1.4
Maternal Education
Not a High School Graduate 1903 68.3±3.1 38.0±3.6 21.1±3.1
High School Graduate 3282 64.9±2.6 33.3±2.6 16.6±2.0
Some College 4556 75.3±2.0 41.9±2.3 21.8±2.0
College Graduate 7244 86.3±1.2 58.5±1.8 30.8±1.7
Maternal Marital Status
Married 12813 79.9±1.3 50.4±1.5 26.6±1.3
Unmarried3 4172 60.6±2.5 27.6±2.5 14.0±1.9
Residence
MSA4, Central City 7325 76.1±1.7 45.5±2.0 25.3±1.8
MSA, Non-Central City 6135 75.4±1.9 44.4±2.1 22.5±1.7
Non-MSA 3525 64.3±2.8 34.9±2.7 16.5±1.9
Poverty Income Ratio5, %
<100% 3113 67.1±2.6 34.6±2.9 17.9±2.3
100%-184% 2652 68.5±3.0 38.2±3.1 22.2±2.8
185%-349% 3841 74.4±2.5 45.9±2.7 23.4±2.3
≥350% 5852 82.5±1.9 51.4±2.2 25.6±1.8

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.