Information on Asthma and Influenza (Flu) Vaccination Coverage

Table 1: Vaccination Coverage during 2005-2006 Influenza Season* Among Adults 18+ Years by Selected Characteristics, New York State and U.S. Comparison

Selected Characteristics New York (%)** United States (%)**
Age Group
18-49 NA NA
50-64 37.5 36.6
65+ 69.4 69.3
High Risk*** Category by Age
18-49 32.2 30.5
50-64 NA 48.4
65+ NA NA
No Identified Risk*** Category by Age
18-49 19.8 18.3
50-64 NA 32.2
65+ NA NA
Race/Ethnicity for Ages 65+
Non-Hispanic White 74.6 71.9
All Other Race/Ethnicity 53.4 58.3

Data source

Behavioral Risk Factor Surveillance System (BRFSS), 2006. The BRFSS is a statewide random digit dialing telephone survey of the non-institutionalized adult population aged 18 years and older. This survey provides information on behaviors and risk factors for chronic diseases, infectious diseases, and other health conditions for the adult population.

  • * Coverage estimates are for interviews conducted during February-August 2006.
  • ** Percentages are weighted.
  • *** In the 2006 BRFSS survey, the selected high-risk conditions included diabetes, asthma, myocardial infarction, and coronary heart disease.
  • NA: Not available

National

Data from the 2006 Behavioral Risk Factor Surveillance Survey (BRFSS) indicated the following for the 2005-06 influenza season: 1

  • The estimated influenza vaccination coverage was 30.5% among persons aged 18–49 years with an identified high-risk condition(s) (including asthma), compared with 18.3% among all other persons aged 18-49 years.
  • Among all adults aged 50–64 years, the national influenza vaccination coverage was 36.6%.
  • Influenza vaccination coverage was 48.4% among persons aged 50–64 years with an identified high-risk condition(s)*, compared with 32.2% among all other persons aged 50-64 years.
  • Among adults aged 65+ years, influenza vaccination coverage was 69.3%. Coverage was higher for non-Hispanic whites aged 65+ years (71.9%) compared with other racial/ethnic groups aged 65+ years (58.3%) 1(Table 1).

New York State

According to the 2006 New York State (NYS) BRFSS data, for the 2005–06 influenza season: 1

  • The estimated influenza vaccination coverage was 32.2% among persons aged 18–49 years with an identified high-risk condition(s), compared to 19.8% among all other persons aged 18–49 years.
  • The influenza vaccination coverage was 37.5% and 69.4% for adults aged 50–64 years and adults aged 65+ years, respectively.
  • The influenza vaccination coverage was higher for non-Hispanic whites aged 65+ years (74.6%) compared with other racial/ethnic groups aged 65+ years (53.4%)1(Table 1).

Table 2: Influenza vaccination coverage levels among children aged 6-23 months, United States, September-December 2005

Coverage Levels New York (%)* United States (%)*
Vaccinated with at least 1 dose** 39.5 31.9
Fully vaccinated*** 25.4 20.6

Data source:

National Immunization Survey (NIS) data collected from January 2006 through February 2007. The NIS is a list-assisted random-digit-dialing household telephone survey followed by a mailed survey to children's immunization providers to monitor childhood immunization coverage. The target population for the NIS is children between the ages of 19 and 35 months living in the United States at the time of the interview. Estimates are produced for the nation and for each of 78 Immunization Action Plan areas, consisting of the 50 states, the District of Columbia, and 27 large urban areas.

  • * Percentages are weighted.
  • ** Received at least one dose of influenza vaccine during September-December 2005; includes the subset of children who were considered fully vaccinated.
  • *** Children were considered fully vaccinated according to Advisory Committee on Immunization Practices recommendations if they had 1) received no dose of influenza vaccine before September 1, 2005, but then received 2 doses from September 1, 2005, through either the date of interview or through January 31, 2006, or 2) received at least 1 dose of influenza vaccine before September 1, 2005, and then received at least 1 dose during September-December 2005.

The National Immunization Survey (NIS) data indicated that between September and December 2005, 31.9% of children aged 6-23 months received at least one dose of influenza vaccine and 20.6% were fully vaccinated (i.e., children who received two doses, at least 4 weeks apart for children who were receiving influenza vaccination for the first time).

For New York State, 39.5% of children aged 6-23 months received at least one dose of influenza vaccine during the same time period and 25.4% were fully vaccinated 2(Table 2).

Table 3: Influenza vaccination levels among children aged 2-17 years by asthma status, United States, 2004-05 influenza season*, September 2004-February 2005

Asthma Status United States (%)**
Children with current asthma*** 29.0
Children without current asthma 10.3
All children 12.3

Data source

National Health Interview Survey (NHIS), 2005. The NHIS is an ongoing, cross-sectional, in-person household interview survey of the civilian, non-institutionalized population of the United States. During the interview, information about one randomly selected child from each family is collected from an adult family member who resides in the same household as the child. The child questionnaire contains several questions that assess asthma status.

  • * Coverage estimates are for interviews conducted during March-August 2005 in reference to the 2004–05 influenza season (September 2004–February 2005).
  • ** Percentages are weighted.
  • *** Current asthma: "Yes" response to the survey question, "Has a doctor or other health professional ever told you that [child] had asthma?" and a "yes" response to the survey question, "Does [child] still have asthma?" Without current asthma: "No" response to the survey question, "Has a doctor or other health professional ever told you that [child] had asthma?" or a "no" response to the survey question, "Does [child] still have asthma?"

The 2005 National Health Interview Survey data reported that among children aged 2–17 years, the influenza vaccination coverage for the 2004–05 influenza season was 29.0% for children with current asthma and 10.3% for children without current asthma3(Table 3)

References

  1. "State-Specific Influenza Vaccination Coverage Among Adults Aged ≥18 Years – United States, 2003-04 and 2005-06 Influenza Seasons", Morbidity and Mortality Weekly Report, September 21, 2007 / Vol. 56 / No. 37.
  2. "Influenza Vaccination Coverage Among Children Aged 6-23 Months – United States, 2005-06 Influenza Season", Morbidity and Mortality Weekly Report, September 21, 2007 / Vol. 56 / No. 37.
  3. "Influenza Vaccination Coverage Among Children with Asthma – United States, 2004-05 Influenza Season", Morbidity and Mortality Weekly Report, March 9, 2007 / Vol. 56 / No. 9.