IID-18 Increase the percentage of children under age 6 years of age whose immunization records are in a fully operational, population-based immunization information system (IIS)
About the Data
Description of the data source, numerator, denominator, survey questions, and other relevant details about the national estimate.
Number of children under 6 years of age with two or more immunizations recorded in the immunization information system
Number of children under 6 years of age
55 of 56 CDC immunization information systems awardees (50 states excluding NH, the District of Columbia, and other reporting areas) track immunizations administered to children. "Other reporting areas" are defined as the following five cities: Houston, San Antonio, Chicago, Philadelphia, and New York City. These 5 cities operate separately from their state programs. Data from these cities are not included in the state data.
The metric includes any vaccine administered to a child before their 6th birthday excluding pandemic influenza vaccination (e.g. influenza A (H1N1)pdm09 vaccination) and travel vaccinations.
FOR SINGLE DATA YEARS: Percents are calculated based on the resident population of the CDC immunization information systems awardees (50 states, the District of Columbia, and other reporting areas) for the data year involved. For census years (e.g. 2010), population counts enumerated as of April 1 are used. For all other years, populations estimates as of July 1 are used. Postcensal population estimates are used in rate calculations for years after a census year and match the data year vintage (e.g. July 1, 2011 resident population estimates from Vintage 2011 are used as the denominator for 2011 rates). Postcensal population estimates are used in calculations for the years between censuses (e.g. 1991-1999, 2001-2009). Because the city limits of some reporting areas do not correspond to Census county-level estimates, the American Community Survey population estimates are used in calculations for these reporting areas.
Any change to the objective text, baseline, target, target-setting method or data source since the Healthy People 2020 launch.