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. 2019 Sep 30;50(1):22–34. doi: 10.4070/kcj.2019.0097

Table 1. Baseline clinical and angiographic characteristics of patients according to baseline SS.

Total population Low SS (729 patients) Intermediate SS (362 patients) High SS (157 patients) p value
Age (years) 65.7±10.2 64.6±10.2 66.5±10.2 68.8±9.3 <0.001
Male (sex) 819 (65.6) 476 (65.3) 249 (68.8) 94 (59.9) 0.139
Body mass index (kg/m2) 24.5±3.2 24.7±3.3 24.5±3.0 24.0±3.1 0.069
Diabetes 600 (48.1) 353 (48.4) 168 (46.4) 79 (50.3) 0.686
Hypertension 852 (68.3) 499 (68.4) 246 (68.0) 107 (68.2) 0.986
Dyslipidemia 468 (37.5) 272 (37.3) 137 (37.8) 59 (37.6) 0.985
Chronic renal failure 79 (6.3) 41 (5.6) 22 (6.1) 16 (10.2) 0.100
Peripheral vascular disease 38 (3.0) 19 (2.6) 14 (3.9) 5 (3.2) 0.518
Previous myocardial infarction 87 (7.0) 45 (6.2) 29 (8.0) 13 (8.3) 0.420
Previous PCI 209 (16.7) 131 (18.0) 53 (14.6) 25 (15.9) 0.366
Previous congestive heart failure 54 (4.3) 25 (3.4) 18 (5.0) 11 (7.0) 0.105
Previous CVA 165 (13.2) 104 (14.3) 37 (10.2) 24 (15.3) 0.128
Smoking status* 26.8/18.7/53.4 27.8/18.7/53.4 26.7/15.7/57.6 22.1/20.1/57.8 0.386
Current smoker 328 (26.8) 199 (27.8) 95 (26.7) 34 (22.1) 0.346
Family history of CAD 63 (6.7) 47 (6.4) 27 (7.5) 9 (5.7) 0.848
Clinical diagnosis 39.2/40.6/20.2 40.7/42.2/17.1 37.3/39.0/23.7 36.5/37.2/26.3 0.089
Initial presentation as ACS 751 (60.2) 427 (58.6) 225 (62.2) 99 (63.1) 0.384
LV ejection fraction 57.5±11.7 59.2±10.9 56.5±11.7 52.7±13.2 <0.001
Angiographic findings
Left main disease 287 (23.0) 154 (21.1) 85 (23.5) 48 (30.6) 0.037
Bifurcation 361 (28.9) 188 (25.8) 120 (33.1) 53 (33.8) 0.015
No. of treated vessels <0.001
1 vessel treated 648 (51.9) 420 (57.6) 161 (44.5) 67 (42.7)
2 vessels treated 471 (37.7) 259 (35.5) 149 (41.2) 63 (40.1)
3 vessels treated 129 (10.3) 50 (6.9) 52 (14.4) 27 (17.2)
No. of stents placed 2.1±1.1 1.9±0.9 2.4±1.2 2.6±1.4 <0.001
Total length of stents (mm) 52.3±31.7 44.5±24.4 61.2±35.4 67.7±40.6 <0.001
SS 21.1±9.6 14.5±5.2 27.1±2.8 38.0±4.9 <0.001
Residual SS 9.3±7.9 5.9±5.0 12.1±7.3 18.4±10.0 <0.001
Complete revascularization 178 (14.3) 157 (21.5) 19 (5.2) 2 (1.3) <0.001

Data are shown as mean±standard deviation or number (%). Complete revascularization was defined as a residual SS of 0.

ACS = acute coronary syndrome; CAD = coronary artery disease; CVA = cerebrovascular accident; LV = left ventricular; PCI = percutaneous coronary intervention; SS = SYNergy between percutaneous coronary intervention with TAXus and cardiac surgery score.

*Smoking: current smokers/ex-smokers/never smokers; Clinical diagnosis: stable angina/unstable angina/non-ST elevation myocardial infarction.