1. Applying epidemiologic concepts of primary, secondary, and tertiary prevention to the elimination of racial disparities in asthma 
Christine L.M. Joseph, PhD, L. Keoki Williams, MD, Dennis R. Ownby, MD, Jacquelyn Saltzgaber, MPH, Christine C. Johnson, PhD 
Journal of Allergy and Clinical Immunology 
Volume 117, Issue 2, Pages (February 2006)
DOI: /j.jaci
Copyright © 2006 American Academy of Allergy, Asthma and Immunology Terms and Conditions

2. Fig 1
Current asthma and asthma attack prevalence, Rates are age adjusted to 2000 population. Source: Centers for Disease Control and Prevention/National Center for Health Statistics/National Hospital Ambulatory Medical Care Survey and National Hospital Discharge Survey.
Journal of Allergy and Clinical Immunology  , DOI: ( /j.jaci )
Copyright © 2006 American Academy of Allergy, Asthma and Immunology Terms and Conditions

3. Fig 2
Asthma ED and hospital visits, Rates are age adjusted to 2000 population. Source: Centers for Disease Control and Prevention/National Center for Health Statistics/National Health Interview Survey.
Journal of Allergy and Clinical Immunology  , DOI: ( /j.jaci )
Copyright © 2006 American Academy of Allergy, Asthma and Immunology Terms and Conditions