Table 1. Clinical characteristics of the study participants.
| Variables | Allocated groups | ||
|---|---|---|---|
| Placebo drink | Nutritional drink | P-value | |
| N = 87 | N = 87 | ||
| Age (years) | 56.2±8.9 | 55.6±10.0 | 0.66 |
| Gender (% male) | 82.3 | 81.1 | 0.85 |
| Current smoking (%) | 34.8 | 30.8 | 0.85 |
| Alcohol intake (%) | 42.0 | 44.0 | 0.88 |
| Dialysis vintage (years) | 11.0±7.74 | 10.6±8.26 | 0.78 |
| Single dialysis (h) | 4.13±0.35 | 4.09±0.40 | 0.48 |
| Working (days a month) | 17.4±18.3 | 14.2±13.1 | 0.27 |
| Diabetes (%) | 24.5 | 24.5 | |
| History of coronary artery disease (%) | 44.9 | 45.6 | 0.90 |
| History of cerebrovascular disease (%) | 8.16 | 6.80 | 0.79 |
| Systolic blood pressure (mmHg) | 152.9±22.6 | 150.6±23.7 | 0.50 |
| Diastolic blood pressure (mmHg) | 78.3±13.3 | 75.8±11.4 | 0.20 |
| Hemoglobin (g/dL) | 10.2±1.00 | 10.3±0.88 | 0.60 |
| CRP (mg/dL) | 0.20±0.35 | 0.27±0.52 | 0.30 |
| Albumin (g/dL) | 3.88±0.32 | 3.90±0.31 | 0.71 |
| Glucose (mg/dL) | 103.5±35.6 | 120.2±63.0 | 0.03 |
| Non-HDL cholesterol (mg/dL) | 172.1±38.4 | 176.8±37.3 | 0.39 |
| HDL cholesterol (mg/dL) | 48.0±14.0 | 46.9±15.2 | 0.62 |
Conversion factors for units: hemoglobin in g/dL to g/L ×10, CRP in mg/dL to ng/L ×100, albumin in g/dL to g/L ×10, glucose in mg/dL to mmol/L ×0.0551, non-HDL cholesterol and HDL cholesterol in ng/dL to mmol/L ×0.02586.
All variables were tested via two-tailed t test, except gender, current smoking, alcohol intake, diabetes and history of diseases. These variables were tested by χ2 square test. CRP, C-reactive protein; HDL, high-density lipoprotein.