Staging of Disease: A Case Mix Measurement

  • J. S. Gonnella
  • M. C. Hornbrook
  • D. Z. Louis
Conference paper
Part of the Health Systems Research book series (HEALTH)


The development of techniques for the measurement of hospital output is one of the primary issues facing health service researchers. Scales must be developed which can be used to categorize patients in such a way that homogeneity within patient groups and heterogeneity between patient groups, with respect to the nature of their illness, is maximized. Such a categorization scheme, which must allow for the assessment of the severity of illness can then be used for studies of hospital utilization and costs; development of equitable reimbursement mechanisms for hospitals; and for clinical trails designed to test the efficacy of different treatment modalities.


Health Service Research Diagnosis Related Group Hospital Utilization Jefferson Medical College Diabetes Mellitus Case 
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    Garg ML, Louis DZ, Gliebe WA, et al (1981) Evaluating inpatient costs: the staging mechanism. Med Care 16: 191–201CrossRefGoogle Scholar
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    Fetter RB, et al. (1981) The new ICD-9-CM diagnosis related groups classification scheme. Users manual. vol 1. Health Systems Management Group, School of Organization and Management, Yale University, New Haven, ConnecticutGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1984

Authors and Affiliations

  • J. S. Gonnella
    • 1
  • M. C. Hornbrook
    • 1
    • 2
  • D. Z. Louis
    • 1
    • 3
  1. 1.Center for Research in Medical Education and Health CareJefferson Medical CollegePhiladelphiaUSA
  2. 2.Office Health Services Research CenterKaiser-Permanente Medical Care ProgramPortlandUSA
  3. 3.SysteMetrics, Inc.Santa BarbaraUSA

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