American journal of public health
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We studied all admissions to the 11 acute care hospitals of the New York City Health and Hospitals Corporation (April 1983-September 1984) matching emergency room (ER) admitted diagnostic related group (DRG) subgroups in each hospital with at least five non-ER admitted patients (N = 222,961). Mean cost per ER patient ($8,385) was greater than non-ER mean cost per patient ($4,386) for Medicare and non-Medicare. Our data suggest that public hospitals with a high proportion of ER admissions may be at a financial disadvantage under DRG reimbursement.