In 1987, researchers measured the TCDD concentration in blood samples
from 646 U.S. veterans of the Vietnam War and from 97 U.S. veterans
who did not serve in Vietnam. TCDD is a carcinogenic dioxin in the
herbicide called Agent Orange, which was used to clear jungle hiding
areas by the U.S. military in the Vietnam War between 1962 and 1970.
Usage
data(case0302)
Arguments
Format
A data frame with 743 observations on the following 2 variables.
Dioxin
the concentration of TCDD, in parts per trillion
Veteran
factor variable with two levels,
"Vietnam" and "Other", to indicate the type of veteran
References
Centers for Disease Control Veterans Health Studies: Serum
2,3,7,8-Tetraclorodibenzo-p-dioxin Levels in U.S. Army Vietnam-era
Veterans. Journal of the American Medical Association260: 1249--1254.