In-hospital mortality | 1 year mortality | |||||
---|---|---|---|---|---|---|
OR | 95% CI | P | OR | 95% CI | P | |
Case volume strata | ||||||
High-volume (> 40 cases/year) | Reference | Reference | ||||
Medium-volume (15–40 cases/year) | 1.97 | 1.35–2.88 | < 0.001 | 1.83 | 1.36–2.46 | < 0.001 |
Low-volume (< 15 cases/year) | 2.29 | 1.60–3.27 | < 0.001 | 1.95 | 1.46–2.60 | < 0.001 |
Age, years | ||||||
18–49 | Reference | Reference | ||||
50–59 | 1.51 | 0.91–2.49 | 0.111 | 1.54 | 1.03–2.32 | 0.037 |
60–69 | 1.63 | 1.01–2.66 | 0.047 | 1.97 | 1.33–2.91 | 0.001 |
70–79 | 3.48 | 2.16–5.60 | < 0.001 | 3.65 | 2.46–5.40 | < 0.001 |
≥ 80 | 7.77 | 4.12–14.64 | < 0.001 | 9.40 | 5.52–16.01 | < 0.001 |
Female | 1.18 | 0.89–1.57 | 0.246 | 1.05 | 0.84–1.33 | 0.660 |
Hypertension | 0.93 | 0.68–1.27 | 0.637 | 0.98 | 0.75–1.26 | 0.845 |
Dyslipidaemia | 1.15 | 0.82–1.61 | 0.408 | 0.95 | 0.72–1.26 | 0.747 |
Diabetes mellitus | 1.28 | 0.90–1.81 | 0.168 | 1.21 | 0.90–1.63 | 0.200 |
Extracardiac arteriopathy | 1.18 | 0.81–1.71 | 0.387 | 1.47 | 1.09–1.99 | 0.013 |
Chronic lung disease | 0.76 | 0.58–1.00 | 0.053 | 0.88 | 0.70–1.09 | 0.241 |
Renal impairment | 5.27 | 2.89–9.60 | < 0.001 | 6.79 | 3.74–12.33 | < 0.001 |
Angina pectoris | 0.97 | 0.71–1.34 | 0.859 | 1.02 | 0.78–1.33 | 0.895 |
Recent myocardial infarction* | 1.18 | 0.54–2.58 | 0.677 | 1.09 | 0.55–2.14 | 0.808 |
Congestive heart failure | 1.07 | 0.79–1.45 | 0.654 | 1.12 | 0.88–1.43 | 0.369 |
Urgent or emergent surgery | 1.64 | 0.95–2.84 | 0.078 | 1.69 | 1.03–2.75 | 0.036 |
Red blood cell transfusion, units† | ||||||
0–1 | Reference | Reference | ||||
2–3 | 4.82 | 1.50–15.47 | 0.008 | 1.36 | 0.84–2.19 | 0.215 |
4–5 | 14.48 | 4.51–46.49 | < 0.001 | 3.45 | 2.11–5.62 | < 0.001 |
≥ 6 | 74.06 | 23.22–236.14 | < 0.001 | 16.92 | 10.39–27.55 | < 0.001 |
Rheumatic mitral valve disease | 0.81 | 0.59–1.12 | 0.199 | 0.85 | 0.66–1.09 | 0.204 |
Concurrent atrial fibrillation surgery | 0.85 | 0.62–1.15 | 0.267 | 0.76 | 0.59–0.97 | 0.029 |
Concurrent tricuspid valve repair | 0.98 | 0.73–1.31 | 0.890 | 0.99 | 0.78–1.26 | 0.932 |
Infective endocarditis | 0.46 | 0.13–1.71 | 0.248 | 0.24 | 0.06–0.87 | 0.030 |
Surgery year | 0.99 | 0.93–1.05 | 0.648 | 0.96 | 0.92–1.01 | 0.840 |