Table 3.
Dialysis-related data of peritoneal dialysis patients stratified by kidney size (n = 83).
| Variable | All patients (n = 83) | Diabetic patients with enlarged or normal kidney size (n = 67) | Diabetic patients with small kidney size (n = 16) | P value |
|---|---|---|---|---|
| Erythropoietin dose, unit/month | 17,108.43 ± 6248.93 | 16,716.42 ± 6630.52 | 18,750.00 ± 4057.91 | 0.245 |
| Dialysate/plasma creatinine | 0.69 ± 0.11 | 0.69 ± 0.013 | 0.68 ± 0.029 | 0.822 |
| Peritoneal equilibration test | 0.517 | |||
| High, n (%) | 12 (14.5) | 10 (14.9) | 2 (12.5) | |
| High average, n (%) | 46 (55.4) | 38 (56.7) | 8 (50.0) | |
| Low average, n (%) | 21 (25.3) | 15 (22.4) | 6 (37.5) | |
| Low, n (%) | 4 (4.8) | 4 (6.0) | 0 (0.0) | |
| Weekly Kt/Vurea | 2.01 ± 0.04 | 2.00 ± 0.39 | 2.06 ± 0.39 | 0.896 |
| Weekly creatinine clearance rate, L/1.73 m2 | 59.52 ± 15.53 | 60.67 ± 16.48 | 54.71 ± 9.67 | 0.170 |
| Normalized protein nitrogen appearance, g/kg/day | 1.03 ± 0.03 | 1.04 ± 0.03 | 0.99 ± 0.06 | 0.426 |
| Residual kidney function, mL/min | 10.66 ± 15.41 | 11.98 ± 16.56 | 5.15 ± 7.26 | 0.112 |
| Cardiothoracic ratio | 0.51 ± 0.06 | 0.51 ± 0.06 | 0.51 ± 0.05 | 0.854 |
Residual kidney function was determined by urinary creatinine clearance using a 24-h urine collection method. Cardiothoracic ratio was measured by dividing the biggest transverse diameter of the heart silhouette by the length between the internal margins of the ribs at the level of right hemidiaphragm.