The Bureau of Medical Economic Research of the American Medical Association has a number of studies under way that are designed to produce an estimate of the totality of services rendered by physicians to the American people annually.1 The first item in this series presented data on the age and sex distribution of patients treated by physicians in hospitals; the excess of male patients in the hospitals in the United States on a given day was surprising.2 The present study considers hospital patients only in selected categories chosen because each includes a large number of patients and because it was reasonable to expect that hospital administrators and medical record librarians could furnish the necessary data for the entire year of 1954. We wish to express our deep appreciation to the hospital administrators, the medical record librarians, and other hospital staff members for their cooperation in a difficult undertaking.
Dickinson FG, Raymond J. SOME CATEGORIES OF PATIENTS TREATED BY PHYSICIANS IN HOSPITALS. JAMA. 1956;162(17):1546–1554. doi:10.1001/jama.1956.72970340009015