HSAUR3 (version 1.0-15)

Smoking_Mueller1940: Smoking and Lung Cancer (I)

Description

Number of smokers in a case-control study.

Usage

data(Smoking_Mueller1940)

Format

The format is: table [1:5, 1:2] 25 18 13 27 3 4 5 22 41 14 - attr(*, "dimnames")=List of 2 ..$ Smoking_type: chr [1:5] "Extreme smoker" "Very heavy smoker" "Heavy smoker" "Moderate smoker" ... ..$ Group : chr [1:2] "Lung cancer" "Healthy control"

Details

Extreme smoker: 10-15 cigars, >35 cigarettes, or >50 g pipe tobacco/day. Very heavy smoker: 7-9 cigars, 26-35 cigarettes, or 36-50 g pipe tobacco/day. Heavy smoker: 4-6 cigars, 16-25 cigarettes, or 21-35 g pipe tobacco/day. Moderate smoker: 1-3 cigars, 1-15 cigarettes, or 1-20 g pipe tobacco/day.

References

Richard Doll (1998), Uncovering the effects of smoking: historical perspective. Statistical Methods in Medical Research, 7(87), 87-117

Examples

data(Smoking_Mueller1940)
## maybe str(Smoking_Mueller1940) ; plot(Smoking_Mueller1940) ...