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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 numberVolume of procedures mean (SD)StatusSpecialization degree a mean (SD)Attraction rateb mean (SD)
TeachingPublic or private non-for-profitPrivate for profit
Colectomy610141.2 (87.5)30 (4.9%)319 (52.3%)261 (42.8%)5.3 (2.4)13.8 (14.5)
Proctectomy52271.0 (54.2)33 (6.3%)297 (56.9%)192 (36.8%)2.5 (2.3)16.2 (17.3)
Esophagectomy6237.0 (58.4)23 (37.1%)27 (43.5%)12 (19.4%)0.8 (1.1)33.2 (26.7)
Gastrectomy34328.5 (22.7)30 (8.7%)184 (53.6%)129 (37.6%)0.9 (0.9)16.9 (18.2)
Pancreatectomy16637.0 (39.0)28 (16.9%)83 (50.0%)55 (33.1%)0.9 (0.9)23.5 (22.3)
PCI2211268.6 (1086.3)23 (10.4%)81 (36.7%)117 (52.9%)19.6 (10.1)21.4 (16.5)
CABG45516.6 (502.2)22 (48.9%)18 (40.0%)5 (11.1%)7.8 (7.7)49.3 (21.7)
AAA repair20777.0 (78.5)23 (11.1%)129 (62.3%)55 (26.6%)2.1 (1.8)24.0 (21.2)
Carotid endarterectomy296215.6 (209.1)19 (6.4%)193 (65.2%)84 (28.4%)47.7 (26.5)20.1 (19.6)
Hip fracture repair421558.5 (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