title: Adherence and factors associated with influenza vaccination among subjects with asthma in Spain.
abstract: OBJECTIVE
  Influenza has a high morbidity and mortality rate and an increased risk of complications in vulnerable individuals. Children and adults with asthma have a high risk of complications, hospitalisation and even death. The objectives of this study were as follows: to compare influenza vaccination coverage in Spain in a population of asthmatics aged ≥ 16 years with an equivalent population of non-asthmatics; to identify the factors that influence vaccination coverage among patients with asthma; and to compare coverage during the period 2006/2007 with that of 2009/2010.
  
  
  METHODS
  We used data from the 2009 European Health Survey (EHS), which included a population of 22,188 individuals (≥ 16 years of age), of whom 1,669 [7.5 %; 95 % confidence interval (CI), 7.13-7.98] had asthma. The dependent variable was the answer (yes/no) to a question asking whether or not the interviewed person had been vaccinated against seasonal (not pandemic) influenza in the previous season. As independent variables, we analysed socio-demographic characteristics, health-related variables and the use of health care services.
  
  
  RESULTS
  Vaccination coverage was 35.2 % (95 % CI, 32.5-37.9) among asthmatics and 22.1 % (95 % CI, 21.4-22.7) among non-asthmatics (p < 0.001). The probability of being vaccinated is almost twice as high for asthmatics as it is for non-asthmatics [odds ratio (OR), 1.92; 95 % CI, 1.69-2.17]. Among asthmatics, vaccination coverage increased with age, worse self-rated health status and not smoking. No significant change in coverage was observed between the study periods.
  
  
  CONCLUSIONS
  Seasonal influenza vaccination coverage among Spanish asthmatics is lower than desired and has not improved in recent years. Urgent strategies are necessary in order to increase vaccination coverage among asthmatics.
authors: Preventive Medicine and Public Health Department, Faculty of Medicine, Complutense University, Madrid, Spain.
authors: J M
authors: JM
authors: Santos-Sancho
authors: A
authors: A
authors: López-de Andrés
authors: I
authors: I
authors: Jimenez-Trujillo
authors: V
authors: V
authors: Hernández-Barrera
authors: P
authors: P
authors: Carrasco-Garrido
authors: P
authors: P
authors: Astasio-Arbiza
authors: R
authors: R
authors: Jimenez-Garcia
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001249:Asthma / Q000821:virology*; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007252:Influenza Vaccines / Q000008:administration & dosage*; D007251:Influenza, Human / Q000517:prevention & control*; D008297:Male; D008875:Middle Aged; D016017:Odds Ratio; D012959:Socioeconomic Factors; D013030:Spain; D014611:Vaccination / Q000706:statistics & numerical data*; D055815:Young Adult
chemical_list: D007252:Influenza Vaccines
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