71 pages. "Spending for an episode of care in the private sector varied across metropolitan statistical areas (MSA) for coronary stent placement, laparoscopic appendectomy, and total hip replacement, even after GAO adjusted for geographic differences in the cost of doing business and differences in enrollee demographics and health status. MSAs in the highest-spending quintile had average adjusted episode spending that was 74 to 94 percent higher than MSAs in the lowest-spending quintile, depending on the procedure. MSAs with higher spending on one procedure generally had higher spending on the other two procedures. High- or low-spending MSAs were not concentrated in particular regions of the nation." [GAO-15-214, published Dec. 29, 2014, released Jan. 28, 2015]