Table 3.
Treatment characteristics associated with inadequate hemodialysis.
| Factors | URR | p value | Kt/V | p value | ||
|---|---|---|---|---|---|---|
| Inadequate (%) | Adequate (%) | Inadequate (%) | Adequate (%) | |||
| Dialyzer surface area (m2) | ||||||
| <1.4 | 87 (69.0) | 39 (31.0) | 0.023 | 79 (62.7) | 12 (31.6) | 0.033 |
| ≥1.4 | 7 (41.2) | 10 (58.8) | 6 (35.3) | 46 (43.8) | ||
| Vascular access in the last month∗ | ||||||
| Temporary | 27 (71.1) | 11 (28.9) | 0.420 | 26 (68.4) | 12 (31.6) | 0.226 |
| Permanent | 67 (63.8) | 38 (36.2) | 59 (56.2) | 46 (43.8) | ||
| Months since dialysis initiation | ||||||
| 3–12 | 53 (63.1) | 31 (36.9) | 0.428 | 48 (57.1) | 36 (42.9) | 0.467 |
| >12 | 41 (69.5) | 18 (30.5) | 37 (62.7) | 22 (37.3) | ||
| Number of dialysis sessions per week | ||||||
| 1 | 0 | 2 (100.0) | 0.128 | 0 | 2 (100.0) | 0.222 |
| 2 | 15 (62.5) | 9 (37.5) | 15 (62.5) | 9 (37.5) | ||
| 3 | 79 (67.5) | 38 (32.5) | 70 (59.8) | 47 (40.2) | ||
| Dialysis sessions in a month | ||||||
| 2–11 | 32 (60.4) | 21 (39.6) | 0.300 | 31 (58.5) | 22 (41.5) | 0.901 |
| >11 | 62 (68.9) | 28 (31.1) | 54 (60.0) | 36 (40.0) | ||
| Blood flow rate (ml/min) | ||||||
| <250 | 13 (65.0) | 7 (35.0) | 0.941 | 13 (65.0) | 7 (35.0) | 0.566 |
| ≥250 | 81 (65.9) | 42 (34.1) | 72 (58.5) | 51 (41.5) | ||
| Ultrafiltration (liters) | ||||||
| 0–2 | 65 (65.7) | 34 (34.3) | 1.000 | 60 (60.6) | 39 (39.4) | 0.716 |
| 2–4 | 29 (65.9) | 15 (34.1) | 25 (56.8) | 19 (43.2) | ||
| Hemoglobin (g/dL) | ||||||
| <10 | 45 (71.4) | 18 (28.6) | 0.203 | 44 (69.8) | 19 (30.2) | 0.029 |
| ≥10 | 49 (61.3) | 31 (38.7) | 41 (51.3) | 39 (48.7) | ||
∗Temporary access included central venous catheters and permanent access included arteriovenous fistulae and arteriovenous graft in 3 patients.