Table 1.
Characteristics of the study population (n = 49).
| Variables | Mean ± SD or median [IQR] | Number (%) |
|---|---|---|
| Age (years) | 59.5 ± 14.8 | |
| Sex male | 38 (78.6) | |
| Body mass index (kg/m2) | 23.6 [20.8–25.4] | |
| PD period (months) | 24 [13–45] | |
| Hemodialysis combination | 12 (24.5) | |
| Antacids | 19 (38.8) | |
| Phosphate binder | 44 (89.8) | |
| Vitamin D | 27 (55.1) | |
| Diuretics | 25 (51.0) | |
| Intravenous iron supplementation | 0 (0) | |
| Oral iron supplementation | 27 (55.1) | |
| Dysgeusia | 4 (8.2) | |
| Dermatitis | 9 (18.4) | |
| Chronic diarrhea | 2 (4.1) | |
| PD modality: CAPD | 18 (36.7) | |
| PD modality: APD | 31 (63.3) | |
| Red blood cells (104/μL) | 350.8 ± 46.9 | |
| White blood cells (103/μL) | 6.3 [5.2–7.5] | |
| Hemoglobin (g/dL) | 10.9 ± 1.4 | |
| Platelets ( ×104/μL) | 23.0 ± 7.5 | |
| Total protein (g/dL) | 6.2 ± 0.5 | |
| Albumin (g/dL) | 3.4 ± 0.5 | |
| Blood urea nitrogen (mg/dL) | 53.0 [48.5–63.5] | |
| Creatinine (mg/dL) | 11.1 ± 3.2 | |
| C-reactive protein (mg/dL) | 0.11 [0.04–0.33] | |
| Uric acid (mg/dL) | 6.0 [5.1–7.2] | |
| Sodium (mEq/L) | 138.1 ± 3.8 | |
| Potassium (mEq/L) | 4.6 ± 0.1 | |
| Chloride (mEq/L) | 100.2 ± 5.0 | |
| Corrected calcium (mg/dL) | 9.1 ± 0.6 | |
| Phosphorus (mg/dL) | 5.6 ± 1.1 | |
| Zinc (μg/dL) | 60.1 ± 10.4 | |
| Magnesium (mg/dL) | 2.1 [1.9–2.5] | |
| Copper (μg/dL) | 91 [81–102] | |
| Iron (μg/dL) | 75 [59–97] | |
| Transferrin saturation (%) | 31.5 [22.8–38.8] | |
| Ferritin (mg/mL) | 125.1 [79.9–233.1] | |
| Blood glucose (mg/dL) | 109 [98–132] | |
| HbA1c (%) | 5.5 [4.9–6.1] | |
| Total cholesterol (mg/dL) | 170.9 ± 45.2 | |
| HDL cholesterol (mg/dL) | 46.7 ± 14.2 | |
| LDL cholesterol (mg/dL) | 91.8 ± 36.0 | |
| Triglycerides (mg/dL) | 113.0 [81.0–165.5] | |
| β2 microgloblin (mg/L) | 28.4 ± 9.2 | |
| Intact PTH (pg/dL) | 236.0 ± 133.2 | |
| Total Kt/V urea | 1.6 [1.3–1.7] | |
| Peritoneal Kt/V urea | 1.1 ± 0.5 | |
| Renal Kt/V urea | 0.5 ± 0.3 | |
| D/P Creatinine | 0.65 ± 0.14 | |
| Dose of ESA (IU) | 20,000 [10,000–30,000] | |
| ERI [IU/week/kg/(g/dL)] | 6.2 ± 3.7 | |
| GNRI (g/dL) | 95.3 ± 10.8 |
SD, standard deviation; IQR, interquartile range; PD, peritoneal dialysis; CAPD, continuous ambulatory peritoneal dialysis; APD, automated peritoneal dialysis; HbA1c, hemoglobin A1c; HDL, high-density lipoprotein; LDL, low-density lipoprotein; PTH, parathormone; D/P Cre, 4-h dialysate/plasma creatinine ratio; ESA, erythropoietin stimulating agents; ERI, erythropoietin resistance index; GNRI, geriatric nutritional risk index.