Table 2.
Multivariable survival after CABG.
| Characteristic | Multivariable HR (95% CI) |
|---|---|
| Main effect | |
| No COPD | 1.0 Referent |
| Black COPD | 1.6 (1.1–2.2) |
| White COPD | 1.9 (1.7–2.3) |
| Age (years) | |
| Q1 (≤56) | 1.0 Referent |
| Q2 (>56–64) | 1.4 (1.1–1.8) |
| Q3 (>64–72) | 2.2 (1.7–2.7) |
| Q4 (>72) | 3.5 (2.8–4.3) |
| PTrend < 0.0001 | |
| Sex | |
| Male | 1.0 Referent |
| Female | 1.1 (0.92–1.2) |
| CAD severity | |
| 1 Vessel | 1.0 Referent |
| 2 Vessel | 1.4 (0.97–2.1) |
| 3 Vessel | 1.5 (1.1–2.2) |
| PTrend = 0.017 | |
| Hypertension | |
| No | 1.0 Referent |
| Yes | 1.2 (1.02–1.5) |
| Congestive heart failure | |
| No | 1.0 Referent |
| Yes | 1.8 (1.6–2.1) |
| Prior stroke | |
| No | 1.0 Referent |
| Yes | 1.5 (1.3–1.9) |
CABG, coronary artery bypass grafting; CAD, coronary artery disease; CI, confidence interval; COPD, chronic obstructive pulmonary disease; HR, hazard ratio.