In-hospital mortality and management stratified by chest pain centre accreditation status in accredited hospitals*
| Endings or treatment procedures | Total | Before accreditation | Undergoing accreditation | After accreditation | P value |
| ACS | |||||
| N | 201 038 | 96 150 | 28 029 | 76 859 | |
| In-hospital death | 6340 (3.2) | 3272 (3.4) | 798 (2.8) | 2270 (3.0) | <0.001 |
| Length of stay, day | 7 (5–11) | 8 (5–11) | 7 (5–11) | 7 (5–10) | <0.001 |
| Total charge, 10 000￥ | 2.2 (0.9–4.7) | 1.9 (0.9–4.7) | 2.4 (0.9–4.8) | 2.5 (0.9–4.8) | <0.001 |
| PCI | 76 710 (38.2) | 33 981 (35.3) | 11 112 (39.6) | 31 617 (41.1) | <0.001 |
| AMI | |||||
| N | 91 151 | 44 190 | 13 056 | 33 905 | |
| In-hospital death | 5051 (5.5) | 2636 (6.0) | 642 (4.9) | 1773 (5.2) | <0.001 |
| Length of stay, day | 8 (6–11) | 9 (6–12) | 8 (6–12) | 8 (5–11) | <0.001 |
| Total charge, 10 000￥ | 3.9 (1.7–5.6) | 3.8 (1.5–5.6) | 4.0 (1.7–5.7) | 4.0 (1.9–5.6) | <0.001 |
| PCI | 50 708 (55.6) | 22 713 (51.4) | 7461 (57.1) | 20 534 (60.6) | <0.001 |
*Continuous variables are presented as median (IQR), and the differences between groups were compared using the signed rank test. Categorical variables are shown as n (%), and the differences between groups were compared using the χ2 test.
ACS, acute coronary syndrome; AMI, acute myocardial infarction; PCI, percutaneous coronary intervention.