All deaths from cancer occurring in Detroit during the six months from May 15 to Nov. 15, 1927 were studied. Data were also obtained on all operations for cancer of the breast and alimentary canal at all Detroit hospitals during the same period. (Many of these patients did not die.) In a few instances, especially in persons with cancer of the breast and cervix, the study included those dying during the next six months.
A blank form was devised which contained on the first page the information on the death certificate and data about admissions to hospitals, etc.; on the two inside pages was listed a series of questions about cancer, grouped in eight different regions of the body and arranged for (a) precancerous symptoms, (b) symptoms of cancer and (c) signs on examination at the time the diagnosis was made. On the back of the blank was recorded information
SALTZSTEIN HC, SANDWEISS DJ. THE AVERAGE TREATMENT OF CANCERII. REPORT OF THE STUDY OF THE DEATHS FROM CANCER IN DETROIT DURING SIX MONTHS FROM MAY 15 TO NOVEMBER 15, 1927. Arch Surg. 1929;18(5):2176-2190. doi:10.1001/archsurg.1929.01140140132007