- Effective care. This is care that is the right treatment for the vast majority of patients, and variation in this element relates to underuse, e.g. vaccination
- Preference Sensitive Care. This is care provided when there are more than one effective treatment, and choice of therapy should be dictated by patient preference; in fact, physician choice often determines this. Mastectomy rather than lumpectomy plus radiation for breast cancer for example.
- Supply sensitive care. This is care that is dependent on the supply of services in a region. Roehmers law is one example of this; this states that in an insured popualtion, a hosoital bed is a filled bed. Dartmouth have found no corrleation between the amount of care received and outcomes, suggesting that there are areas with massive overuse of resources. Gawande in a brilliant article two years ago examined this discrepancy.
Also check out the NHS health Atlas. There are huge variations in care evident. Likely that this occurs everywhere.
