About the National Data
Baseline: 24.9 percent of infants born in 2015 were breastfed exclusively through 6 months of age
Target: 42.4 percent
Using a computer-generated phone list, the National Immunization Survey (NIS) identifies households across the United States with children aged 19-35 months and interviews the person who is most knowledgeable about the child's immunization status (""caregiver""). Because children are 19-35 months of age at the time of the parent interview, each survey year represents children born over three years. To tie breastfeeding rates more closely to the concurrent breastfeeding programs, CDC calculates breastfeeding statistics by year of child's birth (birth cohort) instead of the year in which the participant was surveyed. Because adding the last year of survey data to a birth cohort has little impact on the breastfeeding rates, but delays the release of final data for one year, CDC reports breastfeeding rates by combining data from 2 survey years only starting from 2009 births when the participants were sampled from both landline and cell phones. For example, breastfeeding data for children in the 2015 birth cohort are obtained from NIS 2016 and 2017 survey.
Since 2003, the Division of Nutrition, Physical Activity and Obesity at CDC has been publishing breastfeeding statistics on initiation, duration and exclusivity annually. This has been used widely across the country to monitor the breastfeeding progress at both national and state levels.
1. Because Healthy People 2030 objectives have a desired direction (e.g., increase or decrease), the confidence level of a one-sided prediction interval can be used as an indication of how likely a target will be to achieve based on the historical data and fitted trend.