The number of outpatient-surgery centers rose in Pennsylvania in 2007, and so did their income. According to a report today from the Pennsylvania Health Care Cost Containment Council, total margins for the facilities, known officially as ambulatory-surgery centers, rose from 20.85 percent in fiscal 2006 to 24.74 percent in fiscal 2007. Their margins have increased an average of 2.2 percentage points per year since fiscal 2001.
