Provisional Exclusive Breastfeeding Rates by Socio-demographic Factors, Among Children Born in 2005
(Percent +/- half 95% Confidence Interval)

Socio-demographic
Factors
Number Exclusive Breastfeeding1
through 3 Months
Exclusive Breastfeeding1
through 6 Months
US National 15014 31.5±1.3 11.9±0.9
Sex
Male 7700 31.0±1.8 11.9±1.4
Female 7314 32.0±1.8 11.8±1.2
Race/ethnicity
American Indian or Alaska 530 25.7±5.7 7.9±2.8
Asian or Pacific Islander 996 34.5±5.9 13.4±3.7
       Asian 834 34.3±6.5 13.8±4.1
       Native Hawaiian and other 206 35.6±11.4 12.1±7.0
Black or African American 2169 19.2±2.4 6.5±1.5
White 12153 33.9±1.5 12.9±1.1
Hispanic or Latino 3180 32.6±3.1 12.6±2.3
Not Hispanic or Latino (NH) 11834 31.0±1.3 11.6±0.9
       NH Black or African American 1878 18.3±2.5 6.2±1.5
       NH White 9380 33.9±1.5 12.7±1.0
Birth Order
First Born 7647 33.1±1.9 12.4±1.3
Not First Born 7367 29.8±1.7 11.3±1.3
Receiving WIC2
Yes 6427 23.8±1.8 8.2±1.3
No, but eligible 677 40.6±7.2 16.1±4.5
Ineligible 7202 40.4±1.8 15.9±1.4
Maternal Age, Years
<20 379 14.9±5.8 7.4±5.2
20-29 5436 26.7±2.0 10.8±1.5
>=30 9199 36.1±1.7 12.9±1.2
Maternal Education
Not a High School Graduate 1857 23.9±3.5 8.6±2.4
High School Graduate 2781 25.2±2.6 10.2±1.9
Some College 4151 31.5±2.4 11.3±1.7
College Graduate 6225 43.0±1.9 16.2±1.3
Maternal Marital Status
Married 11334 36.9±1.5 14.0±1.1
Unmarried3 3680 19.5±2.2 7.1±1.5
Residence
MSA4, Central City 6584 31.7±2.0 12.3±1.4
MSA, Non-Central City 5550 32.7±2.0 12.3±1.5
Non-MSA 2880 27.5±2.6 9.4±1.7
Poverty Income Ratio5, %
<100% 2779 25.8±3.0 8.9±2.0
100%-184% 2250 27.2±3.4 10.2±2.4
185%-349% 3545 32.6±2.4 12.7±1.8
≥350% 5077 40.1±2.2 15.1±1.6
1Exclusive breastfeeding is defined as ONLY breast milk — NO solids, no water, and no other liquids.
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.