Decision makers are interested in measuring the costs and benefits of various interventions, and sometimes they are presented with the average costs and benefits of alternative interventions and asked to compare these.
Usually a newer intervention is being compared with an existing one, and the most appropriate comparison is not of average costs (and benefits) but of the extra-or marginal-costs (and benefits) of the new intervention.
Reanalysis of the cost effectiveness ratio of biochemical screening of all women for Down's syndrome compared with age based screening shows that the marginal cost effectiveness of biochemical screening is £47 786, compared with an average cost effectiveness of £37 591.
It may sometimes be difficult or costly to calculate marginal costs and benefits, but this should be done whenever possible.
Mots-clés Pascal : Economie santé, Coût marginal, Médecine, Profit, Prise décision
Mots-clés Pascal anglais : Health economy, Marginal cost, Medicine, Benefit, Decision making
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 96-0117964
Code Inist : 002B30A01C. Création : 199608.