Description of the data source, numerator, denominator, survey questions, and other relevant details about the national estimate.
Only children in the National Immunization Survey (NIS) sample aged 6-23 months during the entire span of September-December are included in the measure.
Children in the NIS sample are 19-35 months at the time of the interview. Children’s entire history of influenza vaccination is obtained. Only provider reported vaccinations are used for NIS estimates.
Any change to the objective text, baseline, target, target-setting method or data source since the Healthy People 2020 launch.
In 2013, objectives IID-12.1 through 12.4 objectives were consolidated and revised to IID-12.11.
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