title: Predictors of knowledge of H1N1 infection and transmission in the U.S. population.
abstract: BACKGROUND
  The strength of a society's response to a public health emergency depends partly on meeting the needs of all segments of the population, especially those who are most vulnerable and subject to greatest adversity. Since the early stages of the H1N1 pandemic, public communication of H1N1 information has been recognized as a challenging issue. Public communication is considered a critical public health task to mitigating adverse population health outcomes before, during, and after public health emergencies. To investigate knowledge and knowledge gaps in the general population regarding the H1N1 pandemic, and to identify the social determinants associated with those gaps, we conducted a survey in March 2010 using a representative random sample of U.S. households.
  
  
  METHODS
  Data were gathered from 1,569 respondents (66.3% response rate) and analyzed using ordered logistic regression to study the impact of socioeconomic factors and demographic characteristics on the individual's knowledge concerning H1N1 infection and transmission.
  
  
  RESULTS
  Results suggest that level of education and home ownership, reliable indicators of socioeconomic position (SEP), were associated with knowledge of H1N1. Level of education was found to be directly associated with level of knowledge about virus transmission [OR = 1.35, 95% C.I. 1.12-1.63]. Home ownership versus renting was also positively associated with knowledge on the signs and symptoms of H1N1 infection in particular [OR = 2.89, 95% C.I. 1.26-6.66].
  
  
  CONCLUSIONS
  Policymakers and public health practitioners should take specific SEP factors into consideration when implementing educational and preventive interventions promoting the health and preparedness of the population, and when designing communication campaigns during a public health emergency.
authors.affiliation: Department of Biostatistics and Division of Policy Translation and Leadership Development, Harvard School of Public Health, 677 Huntington Avenue, Boston, MA 02115, USA. esavoia@hsph.harvard.edu
authors.forename: Elena
authors.initials: E
authors.lastname: Savoia
authors.forename: Marcia A
authors.initials: MA
authors.lastname: Testa
authors.forename: Kasisomayajula
authors.initials: K
authors.lastname: Viswanath
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype; D007251:Influenza, Human / Q000635:transmission; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires; D014481:United States; D055815:Young Adult