CHOICE OF INDICATOR DETERMINES THE SIGNIFICANCE AND RISK OBTAINED FROM THE STATISTICAL ASSOCIATION BETWEN FINE PARTICULATE MATTER MASS AND CARDIOVASCULAR MORTALITY

Notice - This site contains archived material(s)

Archive disclaimer
Archive disclaimer
Archived files are provided for reference purposes only. These files are no longer maintained by the Agency and may be outdated. For current EPA information, go to www.epa.gov. It is EPA's policy to support reasonable accommodation to persons with disabilities, pursuant to the Rehabilitation Act of 1973, 29 U.S.C. 791. If you need assistance with accessing archived files, contact EPA's Reasonable Accommodations or submit a request using the Contact Us form.


Abstract

Minor changes in the indicator used to measure fine PM, which cause only modest changes in Mass concentrations, can lead to dramatic changes in the statistical relationship of fine PM mass with cardiovascular mortality. An epidemiologic study in Phoenix (Mar et al., 2000), augmented to include PM1 (Kegler et al., 2000), provides a suitable data set to demonstrate these relationships. The t-statistic and the % increases in risk of cardiovascular death for an inter-quartile increase in PM concentrations will be compared for several fine PM indicators.

Citation

Wilson, W E., T. Mar, AND S. Kegler. CHOICE OF INDICATOR DETERMINES THE SIGNIFICANCE AND RISK OBTAINED FROM THE STATISTICAL ASSOCIATION BETWEN FINE PARTICULATE MATTER MASS AND CARDIOVASCULAR MORTALITY. Presented at European Aerosol Conference, Leipzig, Germany, September 2001.