Free-standing ambulatory surgery centers and hospital surgery volume.

  title={Free-standing ambulatory surgery centers and hospital surgery volume.},
  author={John Bian and Michael Morrisey},
  journal={Inquiry : a journal of medical care organization, provision and financing},
  volume={44 2},
This paper examines the association of free-standing ambulatory surgery centers (ASCs) with hospital surgery volume, using data from the 2002 Medicare Online Survey Certification and Reporting System and the American Hospital Association Annual Surveys of Hospitals. From 1993 to 2001, the number of ASCs per 100,000 population in metropolitan statistical areas (MSAs) increased by 150%. During the same period, hospital outpatient surgeries increased 28%, while inpatient surgeries decreased by 4.5… CONTINUE READING