The effect of health care delivery systems on admission to and treatment at an inpatient dermatology unit.

The University of Miami Department of Dermatology has maintained an active inpatient unit. Analysis of data from a 12 month period from 1995-1996 showed 562 admissions. Cutaneous lymphoma, psoriasis, and chronic wounds accounted for over half the admissions. Most patients were insured by a fee-for-service system, and compared to patients insured by managed care systems or patients who were indigent, fee-for-service patients had the shortest length of stay. Using a case mix severity index, indigent patients had the greatest disease severity followed by fee-for-service patients. Patients enrolled in managed care systems had the least severity suggesting that factors other than disease severity alone may play a role in determining why patients are admitted.