Table 1.
Baseline characteristics of study patients
| Characteristics | APD (n = 58) | HD (n = 58) | P-value |
|---|---|---|---|
| Gender (n [%] men) | 40 (69.0) | 37 (63.8) | 0.555 |
| Age (yr) | 52.4 ± 14.6 | 51.9 ± 13.8 | 0.862 |
| Weight (kg) | 68 (59, 80) | 65 (58, 75) | 0.413 |
| BMI (kg/m2) | 24.95 ± 4.52 | 23.77 ± 3.82 | 0.149 |
| Primary disease (n [%] men) | |||
| Primary glomerulonephritis | 25 (43.1) | 19 (32.8) | 0.251 |
| Diabetic kidney disease | 10 (17.2) | 15 (25.9) | 0.259 |
| Hypertensive nephrosclerosis | 5 (8.6) | 2 (3.4) | 0.242 |
| Polycystic kidney disease | 1 (1.7) | 1 (1.7) | 1.000 |
| Lupus nephritis | 1 (1.7) | 0 (0.0) | 0.315 |
| Comorbidities (n [%]) | |||
| Hypertension | 56 (96.6) | 52 (89.7) | 0.143 |
| Diabetes | 28 (48.3) | 25 (43.1) | 0.576 |
| Infection | 11 (19.0) | 9 (15.5) | 0.623 |
| Cerebrovascular disease | 5 (8.6) | 7 (12.1) | 0.542 |
| Coronary atherosclerotic heart disease | 6 (10.3) | 4 (6.9) | 0.508 |
| Heart failure | 2 (3.4) | 7 (12.1) | 0.083 |
| Abdominal surgical history | 2 (3.4) | 5 (8.6) | 0.242 |
| Scr (umol/l) | 875.7 ± 254.0 | 880.3 ± 271.2 | 0.928 |
| BUN (mmol/l) | 30.4 (24.3, 35.9) | 27.3 (22.7, 32.9) | 0.135 |
| eGFR (ml/min per 1.73 m2) | 5.6 (4.0, 7.0) | 5.8 (4.0, 7.5) | 0.535 |
| K (mmol/l) | 4.47 ± 0.60 | 4.41 ± 0.67 | 0.600 |
| Na (mmol/l) | 141.0 ± 3.6 | 140.6 ± 3.1 | 0.541 |
| Cl (mmol/l) | 102.7 ± 4.8 | 102.9 ± 4.6 | 0.793 |
| pH | 7.34 ± 0.06 | 7.35 ± 0.06 | 0.773 |
| HCO3 | 21.6±3.6 | 21.2±3.9 | 0.608 |
| Hb (g/l) | 85.4 ± 20.2 | 83.7 ± 18.6 | 0.635 |
| Alb (g/l) | 34.5 ± 4.7 | 33.6 ± 6.4 | 0.369 |
| Pre-albumin (g/l) | 302.6 ± 74.6 | 289.3 ± 86.8 | 0.402 |
| Ca (mmol/l) | 1.96 ± 0.24 | 1.94 ± 0.26 | 0.668 |
| Corrected Ca (mmol/l) | 2.09 (1.92, 2.25) | 2.14 (1.92, 2.25) | 0.855 |
| P (mmol/l) | 2.09 (1.78, 2.57) | 2.00 (1.72, 2.45) | 0.475 |
| PTH (ng/l) | 313.0 (218.6, 413.1) | 424.3 (248.0, 610.0) | 0.094 |
| TC (mmol/l) | 4.40 ± 1.03 | 4.37 ± 1.22 | 0.864 |
| LDL (mmol/l) | 2.82 (1.98, 3.46) | 2.26 (1.82, 3.24) | 0.285 |
Alb, serum albumin; APD, automated peritoneal dialysis; BNP, brain natriuretic peptide; BUN, blood urea nitrogen; Ca, serum calcium; Corrected Ca, serum corrected calcium; eGFR, estimated glomerular filtration rate; Hb, hemoglobin; HCO3, serum bicarbonate; HD, hemodialysis; K, serum potassium; LDL, low-density lipoprotein; Na, serum sodium; P, serum phosphate; PTH, parathyroid hormone; Scr, serum creatinine; TC, total cholesterol.
Baseline characteristics are expressed as mean ± SD for normally distributed data, median (25th percentile, 75th percentile) for nonnormally distributed data, and frequencies and percentages for categorical data.