Table 3. Cox-proportional hazard model of mid-term survival for SAVR and TAVR among octogenarians.
| Significant variables | HR | 95% CI | P value (≤) | |
|---|---|---|---|---|
| Lower | Upper | |||
| Age (years) | 1.065 | 1.034 | 1.097 | 0.001 |
| Preoperative creatinine (mg/dL) | 1.182 | 1.095 | 1.279 | 0.001 |
| NYHA class III/IV | 1.600 | 1.261 | 2.028 | 0.001 |
| Chronic lung disease (vs. none) | 0.006 | |||
| Mild | 1.153 | 0.707 | 1.882 | 0.568 |
| Moderate | 1.319 | 0.816 | 2.134 | 0.259 |
| Severe | 1.857 | 1.101 | 3.130 | 0.020 |
| Peripheral vascular disease | 1.337 | 1.029 | 1.736 | 0.030 |
| Previous cardiac surgery | 1.295 | 1.019 | 1.645 | 0.035 |
HR, hazard ratio; CKD, chronic kidney disease; CI, confidence interval.