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Statistical methodology of the National Immunization Survey, 2005–2014
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  • Description:
    Objectives: The National Immunization Survey (NIS) family of surveys includes NIS–Child, which monitors vaccination coverage for the U.S. population of children aged 19–35 months; NIS– Teen, which monitors vaccination coverage for the U.S. population of adolescents aged 13–17; and NIS–Flu, which monitors influenza vaccination coverage for the U.S. population of children aged 6 months through 17 years. This report describes the methods used in this family of surveys during the 2005–2014 period. Methods: NIS–Child and NIS–Teen collect data throughout the year in two phases: a telephone survey to identify households with age-eligible children and adolescents, followed by a mail survey to vaccination providers to obtain vaccination histories for the children and adolescents for whom parental consent was obtained to contact providers. The household interview is conducted for all children aged 19–35 months in the household. A random subsample of the telephone numbers is selected for NIS–Teen, and following the household interview for children (if any), the NIS–Teen interview is conducted for one randomly selected adolescent in the household. NIS–Flu collects data throughout the influenza season (October–June) and combines the household responses to influenza vaccination questions from NIS–Child, NIS–Teen, and a short instrument administered for children aged 6–18 months and 3–12 years screened in the same sample of telephone numbers. Results: During 2005–2014, NIS–Child and NIS–Teen conducted household interviews by telephone for 255,644 children and 250,330 adolescents. From the 2010–2011 through the 2014–2015 flu seasons, NIS–Flu obtained information on 559,788 children. CS283214
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