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QuickStats: Age-Adjusted Percentage*, of Adults Aged ≥65 Years Who Had an Influenza Vaccine in the Past 12 Months,§ by Poverty Status — National Health Interview Survey, United States, 1999–2001 and 2014–2016


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The figure above is a bar chart showing that during 2014–2016, 69.2% of all older adults, aged ≥65 years, had received an influenza vaccine in the past 12 months. The percentage of older adults with family income ≥200% poverty level who had received an influenza vaccine in the past 12 months significantly increased from 67.9% during 1999–2001 to 72.2% during 2014–2016. During the same period, the changes from 55.7% to 60.8% among those at the <100% poverty level and from 60.3% to 62.9% for those at the 100% to <200% poverty level were not statistically significant. During both periods, older adults with income ≥200% poverty level were significantly more likely to receive an influenza vaccine compared with those with lower family income.

* With 95% confidence intervals indicated by error bars.

Estimates are based on household interviews of a sample of the noninstitutionalized U.S. civilian population and are derived from the National Health Interview Survey Sample adult component. Percentages were 3-year averages age-adjusted to the projected 2000 U.S. population as the standard population, using three age groups: 65–74, 75–84, and ≥85 years.

§ Based on the survey question,“During the past 12 months, have you had a flu vaccination?” Annual calendar- year estimates of immunizations differ from seasonal flu immunization totals, which reflect vaccinations obtained during the flu season.

Poverty status is based on family income and family size using the U.S. Census Bureau poverty thresholds. Family income was imputed where missing.

During 2014–2016, 69.2% of all older adults, aged ≥65 years, had received an influenza vaccine in the past 12 months. The percentage of older adults with family income ≥200% poverty level who had received an influenza vaccine in the past 12 months significantly increased from 67.9% during 1999–2001 to 72.2% during 2014–2016. During the same period, the changes from 55.7% to 60.8% among those at the <100% poverty level and from 60.3% to 62.9% for those at the 100% to <200% poverty level were not statistically significant. During both periods, older adults with income ≥200% poverty level were significantly more likely to receive an influenza vaccine compared with those with lower family income.

Source: National Health Interview Survey, 1999–2016. https://www.cdc.gov/nchs/nhis.htm.


Reported by: Julie D. Weeks, PhD, JWeeks@cdc.gov, 301-458-4562; Yelena Gorina.

Suggested citation for this article: QuickStats: Age-Adjusted Percentage of Adults Aged ≥65 Years Who Had an Influenza Vaccine in the Past 12 Months, by Poverty Status — National Health Interview Survey, United States, 1999–2001 and 2014–2016. MMWR Morb Mortal Wkly Rep 2018;67:233. DOI: http://dx.doi.org/10.15585/mmwr.mm6707a8.

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