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Table 2 Procedures and clinical outcomes during hospitalization

From: Impact of hospital volume on clinical outcomes of hospitalized heart failure patients: analysis of a nationwide database including 447,818 patients with heart failure

  Hospital volume  
Low (n = 149,182) Medium (n = 149,507) High (n = 149,129) p value
Respiratory support 19,689 (13.2) 23,151 (15.5) 27,814 (18.7) < 0.001
Hemodialysis 3594 (2.4) 3909 (2.6) 3882 (2.6) < 0.001
Intra-aortic balloon pumping 916 (0.6) 1073 (0.7) 1186 (0.8) < 0.001
Extra-corporeal membrane oxygenation 132 (0.1) 160 (0.1) 158 (0.1) 0.200
Cost (JPY) 712,555 (474,773–1,144,035) 743,775 (504,863–1,165,348) 755,800 (519,243–1,181,185) < 0.001
Cost (USD) 6556 (4368–10,525) 6843 (4645–10,721) 6953 (4777–10,867) < 0.001
Length of hospital stay (days) 18 (11–29) 17 (11–28) 16 (11–25) < 0.001
In-hospital death 11,068 (7.4) 10,067 (6.7) 9687 (6.5) < 0.001
  1. Data are expressed as median (interquartile range) or number (percentage)