Table 2.
Factors associated to in-hospital mortality
| CABG | PCI | ||||
| Variable | OR (95% CI) | P value | Variable | OR (95% CI) | P value |
| Region of Spain | Not shown | <0.001 | Region of Spain | Not shown | <0.001 |
| Hospital volume of CABG (as compared with low volume centres) | Hospital volume of PCI (as compared with low volume centres) | ||||
| Low–intermediate | 0.86 (0.77 to 0.95) | 0.004 | Low–intermediate | 1.4 (1.18 to 1.68) | <0.001 |
| Intermediate–high | 0.81 (0.73 to 0.9) | <0.001 | Intermediate–high | 2.05 (1.67 to 2.36) | <0.001 |
| High | 0.77 (0.68 to 0.86) | <0.001 | High | 2.05 (1.73 to 2.42) | <0.001 |
| COPD | 1.35 (1.2 to 1.53) | <0.001 | COPD | 1.25 (1.15 to 1.35) | <0.001 |
| Age (as compared with <60) | Age (as compared with <60) | ||||
| 60–70 | 1.72 (1.55 to 1.91) | <0.001 | 60–70 | 1.69 (1.54 to 1.85) | <0.001 |
| 70–80 | 3.02 (2.73 to 3.33) | <0.001 | 70–80 | 2.6 (3.38 to 2.84) | <0.001 |
| >80 | 5.07 (4.38 to 5.88) | <0.001 | >80 | 3.58 (3.26 to 3.93) | <0.001 |
| Female sex | 1.14 (1.06 to 1.23) | 0.001 | Female sex | 1.09 (1.03 to 1.15) | 0.004 |
| Previous MI | 2.81 (2.62 to 3.01) | <0.001 | Previous MI | 2.62 (2.49 to 2.76) | <0.001 |
| NSTEACS as primary diagnosis | 1.2 (1.12 to 1.28) | <0.001 | |||
| CHF | 3.21 (2.96 to 3.49) | <0.001 | CHF | 4.63 (4.39 to 4.9) | <0.001 |
| PVD | 1.43 (1.29 to 1.57) | <0.001 | PVD | 1.24 (1.15 to 1.34) | <0.001 |
| CVD | 1.72 (1.52 to 1.94) | <0.001 | CVD | 2.29 (2.08 to 2.52) | <0.001 |
| CKD | 1.75 (1.55 to 1.99) | <0.001 | CKD | 1.56 (1.45 to 1.67) | <0.001 |
| On-pump CABG | 1.09 (1.02 to 1.17) | 0.017 | |||
| Bilateral ITA | 0.8 (0.71 to 0.89) | 0.042 | |||
| Period of study (as compared with 1997–2002) | Period of study (as compared with 1997–2002) | ||||
| 2003–2007 | 0.66 (0.61 to 0.72) | <0.001 | 2003–2007 | 1.09 (0.99 to 1.21) | 0.09 |
| 2008–2012 | 0.41 (0.38 to 0.46) | <0.001 | 2008–2012 | 1.18 (1.06 to 1.31) | 0.002 |
| 2013–2017 | 0.29 (0.26 to 0.32) | <0.001 | 2013–2017 | 1.18 (1.06 to 1.32) | 0.002 |
| Hospital without CABG on-site | 0.86 (0.8 to 0.92) | <0.001 | |||
| Diabetes | 1.58 (1.45 to 1.67) | <0.001 | |||
| BMS | 0.86 (0.79 to 0.94) | <0.001 | |||
| DES | 0.41 (0.38 to 0.45) | 0.001 | |||
BMS, bare metal stent; CABG, coronary artery bypass grafting; CHF, congestive heart failure; CKD, chronic kidney disease; COPD, chronic obstructive pulmonary disease; CVD, cerebrovascular disease; DES, drug eluting stent; ITA, internal thoracic artery; MI, myocardial infarction; NSTEACS, non-ST elevation acute coronary syndrome; PCI, percutaneous coronary intervention; PVD, peripheral vascular disease.