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Economic evaluation of health programmes

Economic evaluation of health programmes. Department of Epidemiology, Biostatistics and Occupational Health Class no. 1: Introduction Sept 3, 2008. Plan of class. Introductions Course outline Why economic evaluation? Some examples. General types of economic evaluation

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Economic evaluation of health programmes

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  1. Economic evaluation of health programmes Department of Epidemiology, Biostatistics and Occupational Health Class no. 1: Introduction Sept 3, 2008

  2. Plan of class • Introductions • Course outline • Why economic evaluation? Some examples. • General types of economic evaluation • Perspective of an economic analysis • Economic evaluation as a craft rather than an exact science

  3. Course web page http://www.med.mcgill.ca/epidemiology/courses/EPIB591/

  4. Why economic evaluation in health? Available resources are finite… …while people have almost limitless health care needs

  5. The notion of opportunity cost A resource used up to accomplish one purpose is no longer available for other purposes The opportunity cost of a resource is its value in its next best use

  6. Some recent examples • Economic evaluation of posaconazole versus standard azole prophylaxis in high risk neutropenic patients in the Netherlands. (Eur J Haematology Aug 08)Economic evaluation of varicella vaccination in Italian children and adolescents according to different intervention strategies: The burden of uncomplicated hospitalised cases. (Vaccine Aug 08)Cost effectiveness of chest pain unit care in the NHS. (BMC Health Services Research Aug 08). Economic Evaluation of Influenza Pandemic Mitigation Strategies in the United States Using a Stochastic Microsimulation Transmission Model. (Value in Health, July 08).

  7. Main types of economic evaluation • Cost-benefit analysis • Cost-effectiveness analysis • Cost-utility analysis

  8. Cost-benefit analysis Costs Benefits Benefits – Costs > 0 Desirable intervention

  9. Cost-effectiveness analysis Overall cost of alternative intervention (e.g., Sheltered workshop) Overall cost of new intervention (e.g., SE) - = Difference in cost Outcome of alternative intervention Difference in outcome Outcome of new intervention - = Difference in cost Incremental cost per incremental unit of outcome (e.g., $/additional day of work) = Difference in outcome

  10. Possible outcomes of incremental cost-effectiveness ratio (ICER) calculation SE more effective SE less effective SE more costly SE less costly

  11. Cost-utility analysis • Measure effectiveness using a measure of utility to people affected by the intervention • Most common measure of utility is Quality-Adjusted Life Year

  12. But… which costs do we measure? The importance of point of view

  13. Government-borne health and social care expenditures Personal H & SC expenditures & time Types of resources expended or gained, by source H & SC expenditures covered by private insurance Other government-borne personal services (e.g., prisons) Personal income/wages Tax revenues Government-borne disability benefit payments Private disability payments

  14. Department of Health perspective Government-borne health and social care expenditures Personal H & SC expenditures & time H & SC expenditures covered by private insurance Other government-borne personal services (e.g., prisons) Personal income/wages Tax revenues Government-borne disability benefit payments Private disability payments

  15. Government-borne health and social care expenditures Personal H & SC expenditures & time H & SC expenditures covered by private insurance Government perspective Other government-borne personal services (e.g., prisons) Personal income/wages Tax revenues Government-borne disability benefit payments Private disability payments

  16. Government-borne health and social care expenditures Personal H & SC expenditures & time H & SC expenditures covered by private insurance Societal perspective Other government-borne personal services (e.g., prisons) Personal income/wages Transfer payments – no resources added or lost beyond administrative expenses Tax revenues Government-borne disability benefit payments Private disability payments

  17. Exercise • What costs would you include in an evaluation of a home care stroke rehab program, compared to usual care, which involves longer hospital stays? Detail by perspective: patient; hospital; health care system; society.

  18. Economic evaluation: a craft rather than an exact science • Conceptual controversies, e.g.: • Valuing caregiver time • Valuing productivity losses • Choice of discount rate • Many decisions when conducting an evaluation, e.g.: • Choice of overall method • Degree of precision in what and how to measure both costs and benefits

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