Brent K. Hollenbeck, MD, MS

The Maryland All-Payer Model was associated with an increase in population-based rates of elective major joint replacements, with a more pronounced effect observed in Maryland-only hospitals.

The decision to pursue surgery in patients with Alzheimer disease and related dementias is challenging. Accountable care organizations may influence decisions to pursue surgery in this population.

Medicare Shared Savings Program accountable care organizations spent less on surgical care by reducing inpatient surgery, increasing outpatient surgery, and reducing spending on postacute care after inpatient surgery.

Healthcare integration was associated with small declines in treatment, but no change in overtreatment of prostate cancer. Integrated care delivery alone may be insufficient to curtail overtreatment.