Utilization rates of coronary angiography and cardiac revascularization have been found to vary between areas.
This study addresses the relationship between resource supply and procedure rates.
We compared the association of per capita catherization laboratories, per capita cardiologists and multi-provider markets (where more than one hospital offers coronary angiography services) with the utilization rates for angiography and cardiac revascularization in northern New England, USA.
Administrative data were used to capture invasive cardiac procedures.
Small area analyses were used to create coronary angiography service areas.
Linear regression methods were used to measure associations between the resource supply and utilization rates.
Variation in the use of invasive cardiac procedures was strongly associated with the population-based availability of catheterization facilities and multi-provider markets and unrelated to cardiologist supply or need (as reflected in the hospitalization rates for myocardial infarction).
In the multivariate model, an increase of 1 catheterization laboratory per 100 000 population was associated with an increase in the angiography rate of 1,62 per 1 000 population ; those service areas with multi-provider markets were associated with an additional increase in the angiography rate of 1,27 per 1 000 population (R²=0,84, p=0,0006). (...)
Mots-clés Pascal : Etude comparative, Information, Cardiopathie coronaire, Cardiopathie, Appareil circulatoire pathologie, Maladie, Angiographie, Radiographie, Exploration, Médecin, Pratique professionnelle, Santé, Hôpital, Offre, Soin, Radiodiagnostic, Demande
Mots-clés Pascal anglais : Comparative study, Information, Coronary heart disease, Heart disease, Cardiovascular disease, Disease, Angiography, Radiography, Exploration, Physician, Professional practice, Health, Hospital, Offer, Care, Radiodiagnosis, Demand
Notice produite par :
ORS Auvergne - Observatoire Régional de la Santé d'Auvergne
Code Inist : 002B30A11. Création : 21/07/1998.