Description

Dataset from a study which investigated the added risk of breast cancer due to alcohol consumption. A sample of confirmed breast cancer patients were compared with a sample of cancer free women who were close in age and from the same neighborhood as the cases. Data was collected on the alcohol consumption and body mass of both sets of women.

Usage

Format

A data frame with 6 observations on the following 4 variables.

Bodymass

a factor with levels "high", "low" and "medium"

Drinking

a factor with levels "high" and "low"

Cases

number of women with breast cancer

Controls

number of women without breast cancer

Source

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

References

Rosenberg, L., Palmer, J.R., Miller, D.R., Clarke, E.A. and Shapiro, S. (1990). A Case-Control Study of Alcoholic Beverage Consumption and Breast Cancer, American Journal of Epidemiology 131(1): 6–14.

Examples