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Table 2 Patient characteristics by procedure

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

 Patient numberMen N (%)Age mean (SD)No. of different Elixhauser comorbiditiesa Mean (SD)Median income, K€ Mean (SD)Emergency admission N (%)Discharge by transfer N (%)
Colectomy86,10244,994 (52.3)71.6 (12.2)1.8 (1.6)20.4 (3.3)13,201 (15.3)2771 (3.2)
Proctectomy37,08822,862 (61.6)68.5 (11.8)1.5 (1.5)20.3 (3.2)1651 (4.5)1229 (3.3)
Esophagectomy22961858 (80.9)62.3 (9.5)2.4 (1.7)20.0 (3.0)93 (4.1)221 (9.6)
Gastrectomy97775695 (58.2)68.8 (12.8)2.0 (1.7)20.3 (3.2)929 (9.5)500 (5.1)
Pancreatectomy61483255 (52.9)65.0 (11.2)2.1 (1.7)20.6 (3.4)451 (7.3)316 (5.1)
PCI280,369209,058 (74.6)66.1 (13.1)1.5 (1.4)20.3 (3.2)190,154 (67.8)33,713 (12.0)
CABG23,24719,019 (81.8)67.2 (10.4)2.6 (1.8)20.0 (2.8)6586 (28.3)4927 (21.2)
AAA repair15,93514,736 (92.5)74.2 (8.9)1.8 (1.4)20.2 (3.3)0.0 (0.0)321 (2.0)
Carotid endarterectomy63,82945,421 (71.2)72.2 (9.8)1.7 (1.4)20.2 (3.3)4462 (7.0)1861 (2.9)
Hip fracture repair235,13760,169 (25.6)81.6 (11.4)1.4 (1.4)20.1 (3.1)235,137 (100.0)3713 (1.6)
  1. a Elixhauser comorbidities include congestive heart failure, cardiac arrhythmias, valvular disease, pulmonary circulation disorders, peripheral vascular disorders, hypertension uncomplicated/complicated, paralysis, other neurological disorders, chronic pulmonary disease, diabetes uncomplicated/complicated, hypothyroidism, renal failure, liver disease, peptic ulcer disease excluding bleeding, AIDS/HIV, lymphoma, metastatic cancer, solid tumor without metastasis, rheumatoid arthritis/collagen vascular diseases, coagulopathy, obesity, weight loss, fluid and electrolyte disorders, blood loss anemia, deficiency anemia, alcohol abuse, drug abuse, psychoses, depression
  2. PCI percutaneous coronary intervention, CABG coronary artery bypass grafting, AAA abdominal aortic aneurysm