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To the Editor:—
The article "Smoking Habits and Coronary Atherosclerotic Heart Disease (CAHD)" (JAMA177:683-688 [Sept. 9] 1961) interested me greatly. Their Table 2 was:I would note first that the authors state that they had originally tabulated individuals according as they had smoked less than or more than 20 cigarettes daily but that, except for those smoking more than 40, there was no difference. This result is in noteworthy distinction from that found for mortality ratios by Hammond and Horn (JAMA166: 1159-1172 [March 8] 1958) and (JAMA166:1294-1308 [March 15] 1958), namely: which indicated that for deaths the ratio began to be really great in the one-half to one pack category. Admittedly, Spain's and Nathan's population is different from Hammond's and Horn's and cases are different from deaths, as they point out.Second, I will note that I cannot find in Fisher's work (quoted by Messrs. Spain and Nathan without specification) anything to justify marking the
Smoking and Cancer. JAMA. 1962;179(6):471. doi:10.1001/jama.1962.03050060081023
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