snore {asbio}

Snoring and heart disease contingency data

Description

Norton and Dunn (1985) compiled data from four family practice clinics in Toronto to quantify the association between snoring and heart disease for 2484 subjects.

Usage

data(snore)

Format

A data frame with 2484 observations on the following 3 variables.

snoring

A factor with levels every.night nearly.ever.night never occasional

ord.snoring

Agresti (21012) transformed the explanatory levels to ordinal values in his analysis of this data.

disease

Presence/absence of heart disease

Source

Norton, P. G., and E. V. Dunn (1985) Snoring as a risk factor for disease: an epidemiological survey. British Medical Journal 291: 630-632.