bronchitisR Documentation

Chronic bronchitis in a sample of men in Cardiff

Description

The data consist of observations on three variables for each of 212 men in a sample of Cardiff enumeration districts.

Usage

bronchitis

Format

A data.frame of 212 obs of 3 variables:

cig

numeric, the number of cigarettes per day

poll

numeric, the smoke level in the locality

r

integer, 1= respondent suffered from chronic bronchitis

rfac

factor, with levels abs (r=0), and abs (r=0)

Note

See p.224 in SMIR

Source

This copy of the dataset was copied from version 0.02 of the SMIR package, which in turn obtained it from Jones (1975).

References

Jones, K. (1975), A geographical contribution to the aetiology of chronic bronchitis, Unpublished BSc dissertation, University of Southampton. Published in Wrigley, N. (1976). Introduction to the use of logit models in geography, Geo.Abstracts Ltd, CATMOG 10, University of East Anglia, Norwich.

Murray Aitkin, Brian Francis, John Hinde and Ross Darnell (2009). SMIR: Companion to Statistical Modelling in R (SMIR). Oxford University Press.

Examples

data(bronchit)