Table 4.
Multivariate regression model for atrial fibrillation.
| Variable | B | SE | Wald | DF | Sig | Exp (B) |
95% CI |
|
|---|---|---|---|---|---|---|---|---|
| Lower | Upper | |||||||
| Opium use | 0.99 | 0.430 | 5.30 | 1 | 0.020 | 0.37 | 0.937 | 1.003 |
| Age | 0.05 | 0.023 | 6.63 | 1 | 0.010 | 1.05 | 1.01 | 1.1 |
| COPD | 1.37 | 0.455 | 9.10 | 1 | 0.002 | 67 | 29.8 | 154.1 |
| Clamp time | 1.60 | 0.400 | 15.30 | 1 | 0.020 | 5.40 | 2.29 | 12.9 |
| CHF | 4.21 | 0.420 | 100 | 1 | 0.000 | 3.95 | 0.783 | 8.21 |
| pO2 on air | 2.76 | 0.900 | 9.40 | 1 | 0.002 | 15.80 | 2.72 | 92.1 |
| IABP use | 3.50 | 0.510 | 49.40 | 1 | 0.000 | 1 | 36.1 | 13.27 |
| Inotropic support | 1.66 | 0.620 | 6.90 | 1 | 0.008 | 5.20 | 1.53 | 13.04 |
| Constant | 4.73 | 2.070 | 5.10 | 1 | 0.023 | 0.009 | 3.1 | 219.3 |
Abbreviations: CI, confidence interval; SE, standard error of the mean; DF, degrees of freedom; COPD, chronic obstructive pulmonary disease; CHF, congestive heart failure; IABP, intra-aortic balloon pump.