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. Author manuscript; available in PMC: 2017 Nov 1.
Published in final edited form as: Ann Thorac Surg. 2016 Jul 22;102(5):1580–1587. doi: 10.1016/j.athoracsur.2016.04.034

Table 2.

Number of operations capturing specified proportions of centers, total cases, and mortalities

N (%) of 207 total operations performed by:
≥50% of centers
95 (45.9%)		 ≥75% of centers
52 (25.1%)		 ≥90% of centers
22 (10.6%)
N (%) of 207 total operations capturing:
≥50% of all cases
19 (9.2%)		 ≥75% of all cases
42 (20.3%)		 ≥90% of all cases
74 (35.7%)
N (%) of 207 total operations capturing:
≥50% of all mortalities
12 (5.8%)		 ≥75% of all mortalities
33 (15.9%)		 ≥90% of all mortalities
63 (30.4%)

For reference, all but two of the benchmark operations are performed by ≥90% of centers, capture 36.2% of all cases, and 33.5% of mortalities