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Table 1 Hospital characteristics by procedure

From: Influence of trends in hospital volume over time on patient outcomes for high-risk surgery

  Hospitals number Volume of procedures mean (SD) Status Specialization degree a mean (SD) Attraction rateb mean (SD)
Teaching Public or private non-for-profit Private for profit
Colectomy 610 141.2 (87.5) 30 (4.9%) 319 (52.3%) 261 (42.8%) 5.3 (2.4) 13.8 (14.5)
Proctectomy 522 71.0 (54.2) 33 (6.3%) 297 (56.9%) 192 (36.8%) 2.5 (2.3) 16.2 (17.3)
Esophagectomy 62 37.0 (58.4) 23 (37.1%) 27 (43.5%) 12 (19.4%) 0.8 (1.1) 33.2 (26.7)
Gastrectomy 343 28.5 (22.7) 30 (8.7%) 184 (53.6%) 129 (37.6%) 0.9 (0.9) 16.9 (18.2)
Pancreatectomy 166 37.0 (39.0) 28 (16.9%) 83 (50.0%) 55 (33.1%) 0.9 (0.9) 23.5 (22.3)
PCI 221 1268.6 (1086.3) 23 (10.4%) 81 (36.7%) 117 (52.9%) 19.6 (10.1) 21.4 (16.5)
CABG 45 516.6 (502.2) 22 (48.9%) 18 (40.0%) 5 (11.1%) 7.8 (7.7) 49.3 (21.7)
AAA repair 207 77.0 (78.5) 23 (11.1%) 129 (62.3%) 55 (26.6%) 2.1 (1.8) 24.0 (21.2)
Carotid endarterectomy 296 215.6 (209.1) 19 (6.4%) 193 (65.2%) 84 (28.4%) 47.7 (26.5) 20.1 (19.6)
Hip fracture repair 421 558.5 (437.9) 23 (5.5%) 133 (31.6%) 265 (62.9%) 12.9 (7.9) 11.9 (12.5)
  1. a Proportion of stays for each studied procedure in the surgical department (expressed as a percentage)
  2. b Proportion of patients living in another geographical area that the one of hospital location where they underwent each studied procedure (expressed as a percentage)
  3. PCI percutaneous coronary intervention, CABG coronary-artery bypass grafting, AAA abdominal aortic aneurysm