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Analyses of the course of recorded mortality due to causes which are producing increasing death rates are necessary to show the size and nature of these problems and the rate at which they are changing. The present study shows clearly the changes that are occurring in cancer mortality, since the rates by classification of the site of the disease for the sixteen years studied are confined to the death registration states of 1920 and are therefore less influenced by the fluctuations that often are found in the expanding death registration area when new states were becoming accustomed to death registration values and technic. The cancer mortality rates are tabulated by age, sex, color and site according to the geographic sections of the death registration states of 1920. In each of these five geographic sections the recorded mortality rate for females is higher than the rate for males, varying from a
Cancer Mortality in the United States. II: Recorded Cancer Mortality in Geographic Sections of the Death Registration States of 1920, from 1920 to 1935. JAMA. 1940;114(24):2409–2410. doi:10.1001/jama.1940.02810240063029