case0302: Agent Orange

In Sleuth2: Data Sets from Ramsey and Schafer's "Statistical Sleuth (2nd Ed)"

Agent Orange

Description

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)

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

Source

Ramsey, F.L. and Schafer, D.W. (2002). The Statistical Sleuth: A Course in Methods of Data Analysis (2nd ed), Duxbury.

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 Association 260: 1249–1254.

Examples

str(case0302)
boxplot(Dioxin ~ Veteran, case0302)
t.test(Dioxin ~ Veteran, case0302)
## To examine results with largest dioxin omitted
t.test(Dioxin ~ Veteran, case0302, subset=(Dioxin < 40))

Sleuth2 documentation built on May 29, 2024, 7:37 a.m.