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Table 1 Overview of number of patients and hospitals for all conditions from 2005 to 2007

From: Volume-outcome relationship and minimum volume regulations in the German hospital sector – evidence from nationwide administrative hospital data for the years 2005–2007

Condition Year Number of patients Number of hospitals Average case volume Minimum volume threshold Hospitals achieving minimum volume threshold (%) Patients treated in these hospitals (%)
Liver transplantation 2005 941 22 42.8 10 81.8 96.2
2006 1005 22 45.7 20 68.2 89.8
2007 1118 22 50.8 20 77.3 94.5
Kidney transplantation 2005 2627 42 62.5 20 92.9 97.9
2006 2728 42 65.0 25 90.5 97.8
2007 2902 42 69.1 25 95.2 98.6
Complex interventions at the oesophagus 2005 3063 436 7.0 5 36.2 79.5
2006 3249 411 7.9 10 25.1 63.1
2007 3361 437 7.7 10 24.0 64.5
Complex interventions at the pancreas 2005 7795 708 11.0 5 47.0 88.5
2006 8330 712 11.7 10 32.2 77.9
2007 9152 691 13.2 10 40.1 82.3
Stem cell transplantation 2005 5522 102 54.1 12 70.6 97.5
2006 5940 94 63.2 25 61.7 91.5
2007 5744 101 56.9 25 60.4 92.5
Knee replacement 2005 118,269 1055 112.1
2006 124,693 1017 122.6 50 78.2 96.0
2007 134,782 1004 134.2 50 83.8 97.2
CABG 2005 43,501 95 457.9 (200)a 77.9 99.1
2006 39,254 102 384.8 (200)a 69.6 97.8
2007 38,569 101 381.9 (200)a 69.3 96.5
  1. Note: a No official minimum volume threshold exists; a hypothetical minimum volume threshold of 200 is assumed