Table 1. Characteristics of the Cohort and Unadjusted Association of Potential Prognostic Determinants with 180-Day Mortalitya.
| Alive N = 680 |
Expireda N = 38 |
Total N = 718 |
P-value | Unadjusted OR (95%CI) for 180-day Mortality | |
|---|---|---|---|---|---|
| Age years-mean±SD | 73.0 ± 9.5 | 72.2 ± 9.5 | 73.0 ± 9.5 | 0.61† | 0.99 (0.96, 1.03) |
| Male Gender-no.(%) | 435 (64) | 28 (74) | 463 (64) | 0.22 | 1.58 (0.75, 3.30) |
| Non-White Race-no.(%) | 106 (16) | 4 (11) | 110 (15) | 0.40 | 0.64 (0.22, 1.83) |
| Valve Surgery-no.(%) | 219 (32) | 19 (50) | 238 (33) | 0.023 | 2.11 (1.09, 4.06) |
| New York Heart Association Class III/IV-no.(%) | 226 (33) | 27 (71) | 253 (35) | <0.001 | 4.93 (2.40, 10.12) |
| Chronic Lung Disease-no.(%) | 84 (12) | 12 (32) | 96 (13) | 0.001 | 3.28 (1.59, 6.74) |
| Hypertension-no.(%) | 530 (78) | 32 (84) | 562 (78) | 0.36 | 1.51 (0.62, 3.68) |
| Number of Diseased Vessels-no.(%) | 3.4 ± 0.8 | 3.3 ± 1.0 | 3.4 ± 0.8 | 0.31† | 0.94 (0.64, 1.37) |
| Diabetes-no.(%) | 222 (33) | 13 (34) | 235 (33) | 0.84 | 1.07 (0.54, 2.14) |
| Chronic Kidney Disease-no.(%) | 40 (6) | 5 (13) | 45 (6) | 0.072 | 2.42 (0.90, 6.55) |
| Cerebro-Vascular Disease-no.(%) | 79 (12) | 12 (32) | 91 (13) | <0.001 | 3.51 (1.70, 7.24) |
| Prior Cerebrovascular Accident-no.(%) | 31 (5) | 5 (13) | 36 (5) | 0.018 | 3.17 (1.16, 8.69) |
| Perfusion Time (min)-mean±SD | 128.8 ± 67.2 | 203.4 ± 212.9 | 132.8 ± 83.3 | <0.001† | 1.01 (1.00, 1.01) |
| STS Score-median[IQR] | 2 [1, 3] | 4.5 [3, 8] | 2 [1, 3] | <0.001‡ | 1.15 (1.08, 1.21) |
Data presented as n (%) unless otherwise indicated. P determined by chi-square except for † determined by ANOVA or ‡ determined by Kruskal-Wallis test.
a. Expired within 180-days of coronary artery bypass grafting