Why was the ATBC Study conducted in Finland in men only?
The study was conducted in Finland because of the high lung cancer rates in men in that country, which were due primarily to cigarette smoking. Furthermore, Finland had a clinic system for the screening and treatment of lung diseases (mainly tuberculosis) through which the recruited population of smokers could participate in the study. Finland also has a national cancer registry, which keeps track of all the cancer cases identified in that country, a vital measurement for the large trial. Finnish women were not included in the study because their rate of lung cancer was substantially lower than the rate for Finnish men. In 1985, the annual age-adjusted lung cancer rate for Finnish men was 67 cases per 100,000 men and for women was eight cases per 100,000 women. 7. How much did the study cost? NCI allocated about $20 million over 10 years for the trial, with a similar sum contributed by the government and research institutions in Finland. In addition, F. Hoffmann-LaRoche Ltd, a pharmace
