Baseline characteristics and operative data
| Variables* | Low (n=278) (0.83 mg/L >) | Mid (n=519) (0.83–1.13 mg/L) | High (n=236) (1.13 mg/L<) | p Value |
|---|---|---|---|---|
| Age (years) | 60.9±9.6 | 65.5±8.3 | 69.8±9.1 | 0.01 |
| Females (n, %) | 62 (24%) | 109 (24%) | 56 (28%) | 0.53 |
| HTN (n, %) | 163 (64%) | 329 (73%) | 167 (84%) | 0.01 |
| DM (n, %) | 90 (35%) | 177 (40%) | 106 (54%) | 0.01 |
| Dyslipidemia (n, %) | 162 (64%) | 178 (40%) | 66 (34%) | 0.21 |
| CVA (n, %) | 16 (6%) | 33 (7%) | 34 (17%) | 0.01 |
| COPD (n, %) | 3 (1%) | 9 (2%) | 10 (5%) | 0.02 |
| PAOD (n, %) | 13 (5%) | 26 (6%) | 30 (15%) | 0.01 |
| EuroSCORE | 3.2±2.3 | 3.9±2.3 | 5.7±3.8 | 0.01 |
| NYHA (3≤n, %) | 47 (17%) | 98 (19%) | 72 (31%) | |
| LVEF (%) | 58.5±13.0 | 57.3±14.7 | 51.5±14.7 | 0.01 |
| LVESD (mm) | 35±7.5 | 35.8±8.3 | 37.4±8.7 | 0.01 |
| LVEDD (mm) | 50.5±6.6 | 50.7±7.3 | 51.3±8.2 | 0.57 |
| Distal anastomosis (n) | 3.2±0.9 | 3.2±0.8 | 3.6±0.8 | 0.52 |
| LIMA usage (n, %) | 246 (96%) | 438 (98%) | 195 (99%) | 0.76 |
| C.R. (n, %) | 230 (90%) | 413 (92%) | 180 (91%) | 0.81 |
| Operation time (min) | 229.4±41.3 | 235.6±46.3 | 232.3±42.8 | 0.21 |
*Data for continuous variables are shown as mean±SD (range) and data for categorical variables as number (%).
CR, complete revascularisation; COPD, chronic obstructive pulmonary disease; CVA, cerebrovascular accident; DM, diabetes mellitus; EuroSCORE, European System for Cardiac Operative Risk Evaluation; HTN, hypertension; LIMA, left internal mammary artery; LVEDD, LV end-diastolic dimension; LVESD, LV end-systolic dimension; NYHA, New York Heart Association; PAOD, peripheral artery occlusive disease.