Table 2 Procedures and clinical outcomes during hospitalization
| Â | Hospital volume | Â | ||
|---|---|---|---|---|
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 |