Table 1. Baseline patient characteristics.
| Variable | Value (n=1,260) | |
|---|---|---|
| Age (years) | 69.76±9.94 | |
| BMI (kg/m2) | 23.58±3.34 | |
| Sex, male | 970 (77.0) | |
| Left ABI (n=697) | 0.85±0.22 | |
| Right ABI (n=700) | 0.86±0.21 | |
| HbA1c (n=550) | 7.48±1.51 | |
| Total cholesterol (n=423) | 148.67±38.60 | |
| LDL cholesterol (n=388) | 80.72±28.75 | |
| Triglyceride (n=390) | 142.78±94.38 | |
| HDL cholesterol (n=389) | 43.24±14.65 | |
| SBP (mmHg) (n=916) | 127.91±16.95 | |
| DBP (mmHg) (n=916) | 73.45±11.42 | |
| Current smoker | 312 (24.8) | |
| Comorbidities and treatment history*,† | 1,206 (95.7) | |
| Hypertension | 942 (74.8) | |
| Hyperlipidemia | 643 (51.0) | |
| Diabetes mellitus | 632 (50.2) | |
| History of PCI | 541 (42.9) | |
| Angina pectoris | 429 (34.1) | |
| Other vascular comorbidities‡ | 271 (21.5) | |
| Myocardial infarction | 207 (16.4) | |
| Stroke | 175 (13.9) | |
| Heart failure | 130 (10.3) | |
| Coronary artery calcification | 92 (7.3) | |
| History of CABG | 52 (4.1) | |
| Fontaine stage (n=1,208) | ||
| I (asymptomatic) | 524 (43.4) | |
| IIa (mild claudication, ≥200 m) | 533 (44.1) | |
| IIb (moderate-to-severe claudication, <200 m) | 106 (8.8) | |
| III (ischemic rest pain) | 23 (1.9) | |
| IV (ulceration or gangrene) | 22 (1.8) | |
Values are presented as mean ± standard deviation or number (%). Current smoker: smoking history within recent 6 months.
ABI = ankle-brachial index; BMI = body mass index; CABG = coronary artery by-pass graft; DBP = diastolic blood pressure; HbA1c = glycated hemoglobin A1c; HDL = high-density lipoprotein; LDL = low-density lipoprotein; PCI = percutaneous coronary intervention; SBP = systolic blood pressure.
*Multiple response item; †Incidence of 3% or less is not shown; ‡Carotid, vertebral, subclavian, mesentery, renal, and aorta (stenosis in aorta, n=117).