Table 3.
Quintile 1 (n=719) | Quintile 2 (n=700) | Quintile 3 (n=711) | Quintile 4 (n=712) | Quintile 5 (n=705) | χ2 (4 df) | |
30 day mortality after CABG | 9 (1.2%) | 6 (0.8%) | 6 (0.8%) | 10 (1.4%) | 10 (1.4%) | 0.81 (1.57) |
Odds ratio | 1.30 | 0.75 | 0.72 | 1.17 | 1.16 | |
95% CI | 1.13 to 1.50 | 0.26 to 2.20 | 0.24 to 2.09 | 0.46 to 3.17 | 0.45 to 2.29 | |
Postoperative myocardial infarction | 13 (1.8%) | 7 (1.0%) | 16 (2.2%) | 13 (1.8%) | 23 (3.3%) | 0.05 (9.26) |
Odds ratio | 1.03 | 0.59 | 1.34 | 1.09 | 1.96 | |
95% CI | 0.87 to 1.21 | 0.23 to 1.51 | 0.63 to 2.68 | 0.49 to 2.41 | 0.96 to 3.98 | |
Postoperative stroke | 4 (1%) | 2 (1%) | 4 (1%) | 5 (1%) | 5 (1%) | 0.64 (2.50) |
Odds ratio | 0.80 | 0.68 | 1.37 | 1.73 | 2.10 | |
95% CI | 0.49 to 1.31 | 0.11 to 4.13 | 0.30 to 6.16 | 0.41 to 7.29 | 0.52 to 8.44 | |
Death, postoperative stroke, and myocardial infarction | 26 (3%) | 15 (2%) | 26 (3%) | 22 (3%) | 35 (5%) | 0.016 (12.17) |
Odds ratio | 1.14 | 0.48 | 1.12 | 0.94 | 1.52 | |
95% CI | 1.02 to 1.27 | 0.23 to 0.99 | 0.63 to 1.99 | 0.52 to 1.71 | 0.88 to 2.60 | |
Length of stay after CABG (days)* | 7.3 (3.7) | 7.4 (3.5) | 7.7 (5.1) | 7.7 (4.8) | 8.0 (5.8) | 0.03 |
*Unadjusted, mean (SD).