Data Source: National Health Interview Survey (NHIS)
The Sample Adult and Sample Child questionnaires of the NHIS were used to construct a dichotomous outcome for receipt of flu vaccine during the past 12 months (yes or no). Data on Sample Adults (18 years and over) are available for the entire period (2000-2010) while data on Sample Children (17 years and under) are available beginning in 2005 and through 2010. Respondents were asked if they had received a flu shot during the past 12 months. Beginning in September 2003, respondents were asked if they had received a flu vaccine sprayed in their nose (sometimes called by the brand name FluMistª) during the past 12 months, in addition to the question regarding the flu shot. Data on children (17 years and under) are available only from 2005 onward.
Numerator: Those who received seasonal flu vaccine during the last flu vaccination season, either in a shot or nasal spray. Beginning in September 2003, respondents also were asked if they had received a flu vaccine sprayed in their nose, in addition to the question regarding the flu shot.
Denominator: Persons aged 6 months or older.
For more information on how ethnicity was defined, please see the Glossary under Help.
Last updated 17 Apr 2012
For more information on how race was defined, please see the Glossary under Help.
Last updated 17 Apr 2012
Disability was defined according to the standard questions used in the American Community Survey. An individual was identified as having a disability if any of the following conditions existed: is deaf or has serious difficulty hearing; is blind or has serious difficulty seeing even when wearing glasses; has difficulty dressing or bathing; has serious difficulty concentrating, remembering, or making decisions; has serious difficulty walking or climbing stairs; has difficulty doing errands alone such as visiting a doctor's office or shopping. Disability estimates are available for calendar years 2009 and later.
Last updated 17 Apr 2012
Poverty is defined by Census Bureau poverty thresholds. For more information on the definition of poverty, please see the Glossary under Help.
Last updated 17 Apr 2012
For more information on how metropolitan status was defined, please see the Glossary under Help.
Last updated 17 Apr 2012
For more information on how chronic conditions were defined, please see the Glossary under Help.
Last updated 17 Apr 2012
For more information on how regions are defined, please see the Glossary under Help.
Last updated 17 Apr 2012
Click on a state to see data from that state, a time trend graph for the selected state will appear below the map.
White coloring indicates that no data are available for that state.
State-level estimates (if applicable) meet the following criteria: less than or equal to 20% relative standard error and adequate sample size. All other estimates meet the criteria of less than or equal to 30% relative standard error. Estimates may have been suppressed if there were additional concerns over statistical reliability.
Last updated 17 Apr 2012
Inclusion Criteria: All Sample Adults aged 18 years and over. All Sample Children aged 6 months to 17 years.
Exclusion Criteria: 1. Sample Adults and Sample Children with unknown flu vaccination status. 2. For educational status: persons under age 25 years. 3. For pregnancy status: males of all ages and females under 18 years of age and over 49 years of age.
This measure is calculated by the Centers for Disease Control and Prevention/National Center for Health Statistics from the National Health Interview Survey. All estimates meet the criteria of less than or equal to 30% relative standard error, unless stated otherwise. Estimates may have been suppressed if there were additional concerns over statistical reliability.