Table 3.
Multivariable linear and logistic regression predicting cognitive change and cognitive deficit, respectively, at 1-year postoperatively.
| Cognitive Change Index | Cognitive Deficit | |||
|---|---|---|---|---|
| Variable | Parameter Estimate (95% CI) | P-Value | Odds Ratio (95% CI) | P-Value |
| Age (per year) | −0.01 (−0.02, −0.01) | <0.001 | 1.03 (1.00, 1.06) | 0.023 |
| Years of education (per year) | 0.02 (0.01, 0.03) | <0.001 | 0.95 (0.88, 1.02) | 0.190 |
| Preoperative cognitive index | −0.20 (−0.26, −0.14) | <0.001 | 1.13 (0.76, 1.68) | 0.553 |
| Caucasian race | 0.02 (−0.11, 0.15) | 0.725 | 0.70 (0.30, 1.63) | 0.410 |
| Valve vs. CABG | −0.07 (−0.14, 0.004) | 0.065 | 0.93 (0.58, 1.49) | 0.775 |
| CABG+Valve vs. CABG | −0.04 (−0.16, 0.08) | 0.471 | 0.95 (0.44, 2.05) | 0.893 |
| Lidocaine treatment | 0.04 (−0.03, 0.10) | 0.255 | 0.69 (0.45, 1.04) | 0.077 |