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September 3, 1910

Age Incidence, Sex, and Comparative Frequency in Disease.

JAMA. 1910;55(10):880-881. doi:10.1001/jama.1910.04330100066033

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This book represents a comparative study and tabulation of over 42,000 cases from a single institution, covering diseases of all the different systems, classifying them by sex and the decennial age periods, and giving the results in number of cases and percentages. It represents an enormous amount of work, but its value in many instances may be open to question, on account of the small number of cases available. For instance, in a total of less than 400 bladder affections, only two cases of enuresis are recorded, and deductions from such a small number could not be of much value. This holds with reference to the vast majority of affections. In cancer about 1,600 cases are recorded, and in sarcoma 300, including all the different varieties. Here the figures may be of more value. The finding in this series of cases of carcinoma is that between 50 and 60 is

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