Table 1.
The characteristics of the study patients according to the ankle–brachial index
| Characteristics | ABIa < 0.9 (n = 35) | ABI ≧ 0.9 (n = 190) | All patients (n = 225) |
|---|---|---|---|
| Age (yr) | 66.9 ± 9.7b | 57.2 ± 12.9 | 58.7 ± 13.0 |
| Male gender (%) | 31.4 | 45.8 | 43.6 |
| Duration of dialysis (mo) | 62.2 ± 51.7 | 55.3 ± 46.4 | 56.4 ± 47.2 |
| Smoking history (%) | 22.9 | 27.9 | 27.1 |
| Diabetes mellitus (%) | 68.6b | 35.8 | 40.9 |
| Hypertension (%) | 77.1 | 68.9 | 70.2 |
| Coronary artery disease (%) | 48.6c | 26.8 | 30.7 |
| Cerebrovascular disease (%) | 22.8c | 7.4 | 9.8 |
| Vascular access type | |||
| Arteriovenous graft (%) | 40%b | 16.3% | 20% |
| Arteriovenous fistula (%) | 60%b | 83.7% | 80% |
| Systolic BP (mmHg) | 151.8 ± 34.4 | 143.0 ± 24.0 | 144.3 ± 25.9 |
| Diastolic BP (mmHg) | 73.7 ± 18.3 | 79.3 ± 15.3 | 78.5 ± 15.8 |
| Pulse pressure (mmHg) | 78.1 ± 19.2b | 63.7 ± 16.3 | 65.8 ± 17.4 |
| Body mass index (kg/m2) | 24.1 ± 4.3 | 23.8 ± 3.4 | 23.8 ± 3.5 |
| Laboratory parameters | |||
| Albumin (g/dl) | 3.7 ± 0.3b | 3.8 ± 0.3 | 3.8 ± 0.3 |
| Triglyceride (mg/dl) | 161.7 ± 91.6 | 168.6 ± 130.0 | 167.5 ± 124.6 |
| Cholesterol (mg/dl) | 177.3 ± 44.4 | 183.5 ± 42.0 | 182.5 ± 42.3 |
| HDL cholesterol (mg/dl) | 39.9 ± 9.3b | 47.1 ± 15.0 | 46.1 ± 14.5 |
| LDL cholesterol (mg/dl) | 89.5 ± 23.8 | 87.5 ± 27.4 | 87.8 ± 26.8 |
| Creatinine (mg/dl) | 9.0 ± 2.0b | 10.4 ± 2.4 | 10.2 ± 2.4 |
| Hematocrit (%) | 32.0 ± 3.8c | 30.5 ± 3.2 | 30.7 ± 3.3 |
| Calcium (mg/dl) | 9.8 ± 0.8 | 9.8 ± 0.8 | 9.8 ± 0.8 |
| Phosphate (mg/dl) | 4.8 ± 1.2 | 4.8 ± 1.2 | 4.8 ± 1.2 |
| Uric acid (mg/dl) | 7.7 ± 1.8 | 7.6 ± 1.5 | 7.6 ± 1.5 |
| PTH (pg/ml) | 450.2 ± 321.8 | 528.6 ± 475.8 | 516.4 ± 455.5 |
| hsCRP (mg/L) | 0.9 ± 1.0 | 0.7 ± 1.3 | 0.7 ± 1.2 |
| Kt/V | 1.3 ± 0.3 | 1.3 ± 0.2 | 1.3 ± 0.2 |
a
ABI, ankle-brachial index; BP, blood pressure; HDL, high-density lipoprotein; LDL, low-density lipoprotein; PTH, parathyroid hormone; hsCRP, high-sensitivity C-reactive protein.
b
P < 0.001 compared with ABI ≧ 0.9.
c
P < 0.05.