Document 2jrXVVoe4Qbjd4g4M9jXMML0p

174 FEB., 1954 AMERICAN JOURNAL OF PUBLIC HEALTH Table 2--Sex and Race Distribution of Lung Cancer . Patients and Controls Sex and Race Total Total male White Negro Other Total Female White Negro Other Adeno carcinoma 46 42 41 ,. 1 4 3 1 Cases Other Types of Carcinoma 472 451 420 20 11 21 15 3 3 Total 518 493 451 20 12 25 18 4 3 Controls Total 518 493 461 20 12 25 18 4 3 Findings on Smoking Tables 1 and 2 reveal the distribution of the lung cancer patients according to their biological characteristics -- age, sex, race, and the essential similarity of the matched control series in respect to these characteristics. Tobacco usage by lung cancer pa tients and the control group is shown in Table 3. Here one may note that 484 (93 per cent) of the cases gave his tories of having smoked cigarettes; whereas only 394 (76 per cent) of the controls gave a similar history. No such greater frequency of tobacco usage in other forms (pipe, cigar, chew, and snuff) occurs among the lung cancer patients when compared with the con trol group. In fact, 68 of the control group used tobacco in a form other than cigarettes exclusively; whereas only 15 of the lung cancer patients did so-- relative frequencies which are not much Table 3--Tobacco Usage During 20 Years Prior to Study Reported by Lung Cancer Patients and Controls Manner of Using Tobacco Total Total not smoking cigarettes No use ol tobacco Tobacco other than cigarettes, only Total smoking cigarettes Cigarettes, only Cigarettes and other Adeno carcinoma 46 6 4 2 40 31 9 Cases Other Types of Carcinoma 472 28 15 13 444 298 146 Total 518 34 19 15 484 329 155 Controls Total 518 124 56 68 394 240 154