Table 3. Effects of various variables on high SYNTAX score in univariate and multivariate logistic regression analyses.
| Variables | Unadjusted OR | 95% CI | p value | Adjusted* OR | 95% CI | p value |
| Age: per 1 year | 1.05 | 1.02-1.08 | < 0.001 | 1.04 | 1.00-1.08 | 0.05 |
| Male: male vs. female | 1.5 | 0.77-2.94 | 0.234 | |||
| Smoking: smoker vs. non-smoker | 2.1 | 0.98-4.50 | 0.055 | 3.48 | 1.37-8.80 | 0.009 |
| Hypertension: hypertension vs. non-hypertension | 1.31 | 0.49-3.50 | 0.596 | |||
| Diabetes: diabetes vs. non-diabetes | 2.94 | 1.36-6.36 | 0.006 | 3.69 | 1.42-9.55 | 0.007 |
| CKD: CKD vs. non-CKD | 1.71 | 0.81-3.62 | 0.158 | |||
| hsCRP: per 1 mg/L | 1.07 | 0.93-1.23 | 0.329 | |||
| Serum bilirubin: per 1 mg/dL | 0.17 | 0.08-0.37 | < 0.001 | 0.28 | 0.04-0.42 | 0.004 |
CI, confidence interval; CKD, chronic kidney disease; hsCRP, high-sensitivity C-reactive protein; OR, odds ratio.
* Adjusted for age, gender, medical history (smoking, hypertension, diabetes), and serum bilirubin levels.