Date of Origination: 1/2/96
Collected by:  Paul Martin
Last modification: 1/2/96 by PSM

Description: These data are the standardized morality ratio for deaths from lung
   cancer for males in each of 25 occupation categories in England and Wales, 
   1970-72.  The smoking ratio is a measure of cigarette consumption for an 
   occupational order so that in an order with smoking ratio 100 men would smoke 
   the same number of cigarettes ta one would expect on the basis of its age 
   structure and national age-specific smoking rates.

Source:  Hand, D.J., F. Daly, A.D. Lunn, K.J. McConway, and E. Ostrowski (1994) 
   A Handbook of Small Data Sets.  London:  Chapman & Hall.  #84:  Lung cancer 
   and occupation.

Number of observations: 25
 
Variables: There are 3 variables in the data file. 
v1 "Occupation category"
v2 "Smoking ratio"
v3 "Lung cancer standardized mortality ratio"

First three observations from datafile: 
"Farmers, foresters, fishe"         77         84
"Miners and quarrymen"        137        116
"Gas, coke, and chemical m"        117        123

Last three observations from datafile:
"Service, sport and recrea"        100        120
"Administrators and manage"         76         60
"Professional, technical w"         66         51