Influenza Vaccination Coverage of Children Aged 6 to 23 Months: The 2002–2003 and 2003–2004 Influenza Seasons

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Abstract
BACKGROUND. Beginning in 2002 the Advisory Committee on Immunization Practices encouraged, when feasible, annual influenza vaccination of all children aged 6 to 23 months and household contacts and out-of-home caregivers of children 2 tests and logistic-regression analyses to test for associations between influenza vaccination status and demographic characteristics were performed. RESULTS. In the 2002–2003 and 2003–2004 influenza seasons only 7.4% and 17.5%, respectively, of children aged 6 to 23 months received ≥1 influenza vaccination, whereas only 4.4% and 8.4%, respectively, were fully vaccinated. In both seasons, adjusted influenza vaccination coverage was significantly lower among children living below the poverty level; non-Hispanic black children; older children; children with less-educated mothers; children vaccinated only at public clinics; and children not residing in a metropolitan statistical area. CONCLUSIONS. During the first 2 years of the Advisory Committee on Immunization Practices' encouragement for children aged 6 to 23 months to receive influenza vaccination, coverage was low, with significant demographic differences in receipt of vaccination. Beginning with the 2004–2005 influenza season, they replaced the encouragement with a recommendation that children aged 6 to 23 months receive annual influenza vaccination. Substantial work remains to fully and equitably implement this new recommendation and ensure vaccination with 2 doses for previously unvaccinated children.

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