Skip to main content

Table 2 Descriptive statistics of patient and hospital characteristics (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

  Liver Kidney Oesophagus Pancreas Stem cell Knee CABG
Patient level
 Number of patients 1064 2885 3190 8854 5687 132,195 27,644
 Mortality rate (%) 18.6% 1.8% 11.8% 10.1% 5.9% 0.1% 3.2%
 Age (mean) 48.1 49.7 62.8 62.1 48.4 69.7 66.4
 Male (%) 63.3% 62.3% 75.9% 57.5% 62.4% 32.3% 78.3%
 Admission reason (%)
  Scheduled 32.6% 34.6% 80.9% 68.9% 80.2% 95.2% 63.2%
  Emergency 52.7% 60.3% 13.6% 23.3% 14.1% 4.5% 9.3%
  Transfer 14.7% 5.0% 5.5% 7.8% 5.7% 0.3% 27.5%
 Weekend/holiday admission (%) 22.4% 24.1% 9.3% 12.1% 5.0% 17.5% 7.7%
 Charlson comorbidity index (%)
  0 8.6% 18.7% 17.9% 27.1% 47.0% 65.2% 31.7%
  1–2 22.7% 47.9% 35.0% 34.3% 28.4% 30.4% 46.8%
  3–4 40.0% 26.3% 20.5% 16.2% 9.4% 3.7% 16.4%
   > =5 28.7% 7.1% 26.6% 22.5% 15.2% 0.6% 5.1%
Hospital level
 Number of hospitals 22 42 415 680 100 999 98
 Case volume (mean) 50.8 69.1 8.0 13.4 57.4 134.2 393.5
 Ownership (%)
  Public 100.0% 95.2% 46.3% 45.0% 68.0% 42.2% 55.1%
  Private non-profit 0.0% 2.4% 41.4% 42.2% 16.0% 40.0% 18.4%
  Private for-profit 0.0% 2.4% 12.3% 12.8% 16.0% 17.7% 26.5%
  University hospital (%) 95.5% 78.6% 9.2% 5.4% 35.0% 3.6% 34.7%