Published Online: 15 JAN 2013
Copyright © 2002 John Wiley & Sons, Ltd
Encyclopedia of Environmetrics
How to Cite
West, R. W. 2013. Extra Risk . Encyclopedia of Environmetrics. 2.
- Published Online: 15 JAN 2013
To properly quantify the toxic effect of a toxin, the background risk of no exposure to the toxin, R (0), must first be specified. The excess risk incurred by exposure to a dose, d, of the toxin is then viewed as the added risk at this dose relative to the rate of nonadverse responses, 1 − R(0), in the unexposed population.