The former captures more precise information about particular conditions, while the latter enables patients' outcomes to be compared across a range of conditions. Patients complete surveys before and 3-6 months after a surgical procedure to assess whether the intervention improved their health. Hospital-level data are publicly reported, with applied case-mix adjustment to ensure meaningful comparisons can be made between hospitals. Among the clinical areas using PROMs are cardiac, breast cancer and rheumatism care, as well as care for hip fracture and spinal surgery. The purpose is to assess whether patients need check-ups, tests and other treatment to promote high-value care.