Table 1. Baseline clinical characteristics according to SS-II for PCI tertiles.
| Low tertile (n = 104) | Intermediate tertile (n = 102) | High tertile (n = 102) | P Value | |
| Age, yrs | 82.39 ± 2.22 | 82.44 ± 2.34 | 83.29 ± 2.62 | 0.011 |
| Female | 12/104 (11.5%) | 38/102 (37.3%) | 78/102 (76.5%) | < 0.001 |
| Weight, kg | 68.02 ± 9.72 | 62.42 ± 9.35 | 58.73 ± 8.2 | < 0.001 |
| Height, cm | 167.41 ± 6.63 | 163.04 ± 8.05 | 159.19 ± 6.85 | < 0.001 |
| Smoking history | 0.09 | |||
| Current smoker | 10/104 (9.6%) | 5/102 (4.9%) | 5/102 (4.9%) | |
| Ex-smoker | 11/104 (10.6%) | 6/102 (5.9%) | 3/102 (2.9%) | |
| None | 83/104 (79.8%) | 91/102 (89.2%) | 94/102 (92.2%) | |
| Diabetes mellitus | 35/104 (33.7%) | 37/102 (36.3%) | 45/102 (44.1%) | 0.275 |
| Hypertension | 78/104 (75%) | 77/102 (75.5%) | 87/102 (85.3%) | 0.129 |
| Hyperlipidemia | 7/104 (6.7%) | 5/102 (4.9%) | 4/102 (3.9%) | 0.653 |
| Family history of CAD | 1/104 (1%) | 2/102 (2%) | 1/102 (1%) | 0.77 |
| Previous MI | 18/104 (17.3%) | 24/102 (23.5%) | 35/102 (34.3%) | 0.017 |
| Previous PCI | 37/104 (35.6%) | 28/102 (27.5%) | 25/102 (24.5%) | 0.194 |
| Previous stroke | 20/104 (19.2%) | 16/102 (15.7%) | 16/102 (15.7%) | 0.735 |
| COPD | 2/104 (1.9%) | 8/102 (7.8%) | 12/102 (11.8%) | 0.022 |
| LVEF, % | 63.79 ± 6.13 | 61.92 ± 9.65 | 56.9 ± 10.41 | < 0.001 |
| Creatinine, µmol/L | 83.5 ± 21.36 | 94.74 ± 33.19 | 101.47 ± 37.5 | < 0.001 |
| CrCl, mL/min | 59.36 ± 13.53 | 47.15 ± 11.59 | 38.92 ± 10.57 | < 0.001 |
Values are n/N (%) or mean ± SD. CAD: coronary artery disease; COPD: chronic obstructive pulmonary disease; CrCl: creatinine clearance; MI: myocardial infarction; LVEF: left ventricular ejection fraction; PCI: percutaneous coronary intervention; SS-II: SYNTAX score II.