Herzlinger and Krasker analyzed the performance of 563 of the 725
hospitals in six for-profit and eight not-for-profit multi-institutional hospital
systems. American Medical International (AMI), Charter Medical
Corporation, Hospital Corporation of America (HCA), Humana, Lifemark,
and National Medical Enterprises (NME) were the for-profit
systems. The not-for-profit systems were Fairview Community Hospitals,
Health Central, Intermountain Health Care, Kaiser Foundation
Hospitals, Lutheran Health System, Mercy Health Services, Samaritan
Health Services, and Southwest Community Health Services.
Herzlinger and Kraskeres data were compiled from several sources: the
1983 Hospital Cost Limits File compiled for the Medicare program, an
American Hospital Association (AHA) survey, a survey by the federal
Office of Civil Rights concerning payer mix and admission sources, and
the hospitals' Medicare cost reports.