Table 2.
Demographic characteristics of the two dialysis modality groups and percentage of patients with comorbid disease
| Characteristic | Hemodialysis (n = 454) | Peritoneal dialysis (n = 123) | P value |
|---|---|---|---|
| Dialysis vintage (yr) | 2.78 ± 3.90 | 3.27 ± 2.97 | 0.127 |
| Age (yr) | 62.93 ± 13.99 | 52.82 ± 13.54 | < 0.001 |
| > 70 yr | 167 (36.8) | 18 (14.6) | < 0.001 |
| Sex, male | 274 (60.4) | 75 (61.0) | 0.900 |
| Hypertension | 340 (74.9) | 98 (79.7) | 0.287 |
| Diabetes mellitus | 200 (44.1) | 44 (35.8) | 0.099 |
| Coronary disease | 44 (9.7) | 6 (4.9) | 0.092 |
| Smoking history | 95 (20.9) | 19 (15.4) | 0.176 |
| Alcohol drinking | 50 (11.0) | 13 (10.6) | 0.889 |
| NSAIDs | 32 (7.0) | 16 (13.0) | 0.034 |
| Aspirin | 137 (30.2) | 15 (12.2) | < 0.001 |
| BMI (kg/m2) | 22.86 ± 4.38 | 23.43 ± 3.21 | 0.188 |
| SBP (mmHg) | 134.77 ± 19.43 | 132.50 ± 20.99 | 0.258 |
| DBP (mmHg) | 78.07 ± 12.26 | 80.34 ± 13.24 | 0.071 |
| Laboratory parameter | |||
| Total protein (g/dL) | 6.20 ± 2.27 | 6.09 ± 0.91 | 0.604 |
| Albumin (g/dL) | 3.27 ± 0.64 | 3.25 ± 0.63 | 0.802 |
| ALP (IU/L) | 100.88 ± 76.38 | 119.94 ± 145.04 | 0.162 |
| AST (IU/L) | 27.27 ± 31.12 | 23.81 ± 27.40 | 0.264 |
| LDH (U/L) | 495.91 ± 364.72 | 478.99 ± 178.71 | 0.619 |
| BUN (mg/dL) | 52.20 ± 30.21 | 61.82 ± 27.55 | < 0.001 |
| Creatine (mg/dL) | 7.66 ± 14.38 | 11.04 ± 4.50 | < 0.010 |
| Uric acid (mg/dL) | 5.88 ± 2.33 | 6.19 ± 1.86 | 0.124 |
| Total cholesterol (mg/dL) | 163.36 ± 81.63 | 172.26 ± 49.23 | 0.259 |
| LDL-cholesterol (mg/dL) | 99.21 ± 44.21 | 105.76 ± 37.28 | 0.144 |
| HDL-cholesterol (mg/dL) | 41.03 ± 14.73 | 44.91 ± 15.16 | 0.019 |
| Triglyceride (mg/dL) | 128.38 ± 76.58 | 131.15 ± 65.39 | 0.733 |
| Peptic ulcer disease | |||
| Gastric ulcer | 116 (25.6) | 13 (10.6) | < 0.001 |
| Duodenal ulcer | 60 (13.2) | 13 (10.6) | 0.429 |
| Any ulcers | 149 (32.8) | 25 (20.3) | 0.007 |
Data are presented as mean ± standard deviation or number (%).
ALP, alkaline phosphatase; AST, aspartase aminotransferase; BMI, body mass index; BUN, blood urea nitrogen; DBP, diastolic blood pressure; HDL, high-density lipoprotein; LDH, lactase dehydrogenase; LDL, low-density lipoprotein; NSAIDs, non-steroidal anti-inflammatory drugs; PUD, peptic ulcer disease; SBP, systolic blood pressure.