Data on age, smoking, and mortality from a one-in-six
survey of the electoral roll in Whickham, a mixed urban
and rural district near Newcastle upon Tyne, in the UK.
The survey was conducted in 1972-1974 to study heart
disease and thyroid disease. A follow-up on those in the
survey was conducted twenty years later.
Arguments
format
A data frame with 1314 observations on women for the following variables.
outcome
{survival status after 20 years: a factor with levels AliveDead}
smoker {smoking status at baseline: a factor with levels NoYes}
age {age (in years) at the time of the first survey}
Details
This dataset contains a subset of the survey sample:
women who were classified as current smokers or as never
having smoked. The data were synthesized from the summary
description tables given in the Appleton et al al paper.
References
DR Appleton, JM French, MPJ Vanderpump. "Ignoring a
covariate: an example of Simpson's paradox". (1996)
American Statistician, 50(4):340-341.