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. Author manuscript; available in PMC: 2017 Apr 1.
Published in final edited form as: Circ Cardiovasc Interv. 2016 Apr;9(4):10.1161/CIRCINTERVENTIONS.115.003464 e003464. doi: 10.1161/CIRCINTERVENTIONS.115.003464

Table 3.

Operator characteristics by performing physician procedure and practice characteristics.

Overall
(N=4,331)		 Low ACD
operators
(N=2,035)		 High ACD
operators
(N=2,296)		 Standardized
Difference
Annual PCI Volume, median (IQR) 70.4 (38.4,113.6) 68.6 (38.8,111.3) 72.1 (38.1,115.0) 1.84
Region 62.97
 West 884 (20.4) 272 (13.4) 612 (26.7) 33.68
 NorthEast 583 (13.5) 182 (8.9) 401 (17.5) 25.37
 MidWest 1,050 (24.2) 511 (25.1) 539 (23.5) −3.81
 South 1,814 (41.9) 1,070 (52.6) 744 (32.4) −41.68
Teaching Hospital 2,040 (47.1) 967 (47.5) 1,073 (46.7) −1.57
Location/Community 46.95
 Rural 555 (12.8) 221 (10.9) 334 (14.5) 11.09
 Suburban 1,354 (31.3) 574 (28.2) 780 (34.0) 12.48
 Urban 2,422 (55.9) 1,240 (60.9) 1,182 (51.5) −19.14