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Table 10 Residual renal Kt/V, by PD vintage

From: Annual peritoneal dialysis report 2014, the peritoneal dialysis registry

PD vintage <0.1 0.1–<0.4 0.4–<0.8 0.8–<1.2 1.2–<1.7 1.7–<2.0 2.0–<2.4 ≥2.4 Subtotal Unspecified Total Mean SD
<1 year (%) 16 (4.0) 49 (12.2) 126 (31.3) 121 (30.0) 56 (13.9) 18 (4.5) 14 (3.5) 3 (0.7) 403 (100.0) 849 1252 0.84 0.54
1–<2 years (%) 22 (5.7) 64 (16.7) 116 (30.3) 94 (24.5) 62 (16.2) 11 (2.9) 9 (2.3) 5 (1.3) 383 (100.0) 565 948 0.79 0.56
2–<4 years (%) 58 (10.9) 162 (30.4) 158 (29.6) 76 (14.3) 41 (7.7) 18 (3.4) 8 (1.5) 12 (2.3) 533 (100.0) 736 1269 0.65 0.81
4–<6 years (%) 74 (27.3) 79 (29.2) 64 (23.6) 29 (10.7) 14 (5.2) 2 (0.7) 6 (2.2) 3 (1.1) 271 (100.0) 369 640 0.45 0.57
6–<8 years (%) 49 (45.0) 30 (27.5) 15 (13.8) 9 (8.3) 5 (4.6) 1 (0.9) 109 (100.0) 160 269 0.29 0.46
8–<10 years (%) 16 (48.5) 6 (18.2) 4 (12.1) 3 (9.1) 1 (3.0) 1 (3.0) 2 (6.1) 33 (100.0) 68 101 0.5 0.94
≥10 years (%) 22 (68.8) 4 (12.5) 3 (9.4) 2 (6.3) 1 (3.1) 32 (100.0) 77 109 0.19 0.39
Subtotal (%) 257 (14.6) 394 (22.3) 486 (27.6) 334 (18.9) 180 (10.2) 50 (2.8) 37 (2.1) 26 (1.5) 1764 (100.0) 2824 4588 0.66 0.67
No information available (%) 2 (50.0) 1 (25.0) 1 (25.0) (0.0) 4 (100.0) 2596 2600 0.38 0.57
Total (%) 259 (14.6) 395 (22.3) 486 (27.5) 334 (18.9) 181 (10.2) 50 (2.8) 37 (2.1) 26 (1.5) 1768 (100.0) 5420 7188 0.66 0.67
Mean 5.29 3.22 2.42 1.94 1.94 1.88 1.94 3.09 2.86 2.75 2.80
SD 3.51 2.09 1.98 1.88 1.73 1.67 1.55 2.48 2.50 2.85 2.72
  1. These data were obtained from the PD-only patients in the patient survey
  2. Kt/V index for standardized dialysis dose defined as; K: urea clearance, t dialysis time, V: body fluid volume