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Influenza Vaccination Among US Children With Asthma, 2005-2013
Alan E Simon1, Katherine A Ahrens1, Lara J Akinbami2
1Office of Analysis and Epidemiology, National Center for Health Statistics, Centers for Disease Control and Prevention, Hyattsville, Md.
Insights
Influenza vaccination rates for children with asthma increased significantly from 2005 to 2013, reaching 55% by the 2012-2013 season. Early vaccination trends also showed modest increases during this period.
Area of Science:
- Pediatric Pulmonology
- Vaccinology
- Public Health
Background:
- Children with asthma have an increased risk of severe influenza complications.
- Understanding influenza vaccination trends in this vulnerable pediatric population is crucial.
Purpose of the Study:
- To analyze temporal trends in influenza vaccination coverage among children with asthma.
- To identify sociodemographic factors associated with influenza vaccination in children with asthma.
Main Methods:
- Utilized National Health Interview Survey data from 2005-2013 for children aged 2-17.
- Assessed annual and early (August-October) influenza vaccination receipt.
- Employed logistic regression and predictive margins to analyze trends and associations.
Main Results:
- Influenza vaccination coverage among children with asthma increased by approximately 3 percentage points annually from 2005 to 2013, reaching 55%.
- Early vaccination (by October) was received by just over 30% of children with asthma in 2012-2013.
- Adolescents, uninsured children, those with parents having some college education, and those in Midwest, South, and West regions were less likely to be vaccinated.
Conclusions:
- Influenza vaccination coverage for children with asthma has shown a significant upward trend since the 2004-2005 season.
- Coverage reached approximately 55% by the 2012-2013 influenza season.
Background:
Children with asthma face higher risk of complications from influenza. Trends in influenza vaccination among children with asthma are unknown.
Methods:
We used 2005-2013 National Health Interview Survey data for children 2 to 17 years of age. We assessed, separately for children with and without asthma, any vaccination (received August through May) during each of the 2005-2006 through 2012-2013 influenza seasons and, for the 2010-2011 through 2012-2013 seasons only, early vaccination (received August through October). We used April-July interviews each year (n = 31,668) to assess vaccination during the previous influenza season. Predictive margins from logistic regression with time as the independent and vaccination status as the dependent variable were used to assess time trends. We also estimated the association between several sociodemographic variables and the likelihood of influenza vaccination.
Results:
From 2005 to 2013, among children with asthma, influenza vaccination receipt increased about 3 percentage points per year (P < .001), reaching 55% in 2012-2013. The percentage of all children with asthma vaccinated by October (early vaccination) was slightly above 30% in 2012-2013. In 2010-2013, adolescents, the uninsured, children of parents with some college education, and those living in the Midwest, South, and West were less likely to be vaccinated.
Conclusions:
The percentage of children 2 to 17 years of age with asthma receiving influenza vaccination has increased since 2004-2005, reaching approximately 55% in 2012-2013.
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