Table 1.
Baseline characteristics.
| Characteristic | Overall (N = 166) |
Catheter Group | p | |
|---|---|---|---|---|
| Patent Group (N = 103) |
Nonpatent Group (N = 63) | |||
| Age (median [range] years) | 82.0 [75–97] | 81.0 [75–97] | 83.0 [75–92] | 0.016 |
| Sex [n (%)] | ||||
| Men | 74 (44.6) | 55 (53.4) | 19 (30.2) | 0.003 |
| Women | 92 (55.4) | 48 (46.6) | 44 (69.8) | |
| Comorbidities [n (%)] | ||||
| Diabetes mellitus | 93 (56.0) | 62 (60.2) | 31 (49.2) | 0.168 |
| Hypertension | 141 (84.9) | 85 (82.5) | 56 (88.9) | 0.269 |
| Heart failure | 67 (40.4) | 42 (40.8) | 25 (39.7) | 0.890 |
| Ischemic heart disease | 45 (27.1) | 32 (31.1) | 13 (20.6) | 0.144 |
| Atrial fibrillation | 41 (24.7) | 23 (22.3) | 18 (28.6) | 0.369 |
| Cerebral infarction | 22 (13.3) | 17 (16.5) | 5 (7.9) | 0.115 |
| Liver cirrhosis | 11 (6.6) | 3 (2.9) | 8 (12.7) | 0.014 |
| Medication [n (%)] | ||||
| Aspirin | 50 (30.1) | 28 (27.2) | 22 (34.9) | 0.295 |
| Clopidogrel | 36 (21.7) | 23 (22.3) | 13 (20.6) | 0.799 |
| Warfarin | 9 (5.4) | 6 (5.8) | 3 (4.8) | 0.771 |
| Cilostazol | 15 (9.0) | 12 (11.7) | 3 (4.8) | 0.135 |
| NOAC | 12 (7.2) | 11 (10.7) | 1 (1.6) | 0.028 |
| Statin | 70 (42.2) | 48 (46.6) | 22 (34.9) | 0.141 |
| Laboratory data (median [range]) | ||||
| Hemoglobin (g/dL) | 9.7 [5.5–13.2] | 9.7 [5.5–13.2] | 9.5 [6.3–11.9] | 0.685 |
| Total lymphocyte count (103/µL) | 1100.0 [120–4620] | 1160.0 [120–3700] | 940.0 [130–4620] | 0.233 |
| Platelet (000s) | 166.0 [12–520] | 165.0 [12–445] | 140.0 [20–520] | 0.224 |
| CRP (mg/dL) | 2.5 [0.1–40] | 1.4 [0.1–40.0] | 6.8 [0.2–37.8] | <0.001 |
| Total protein (g/dL) | 6.0 [3.9–7.9] | 6.1 [4.2–7.6] | 5.9 [3.9–7.9] | 0.340 |
| Albumin (g/dL) | 3.0 [1.6–4.3] | 3.1 [2.2–4.3] | 2.8 [1.6–4.1] | <0.001 |
| BUN (mg/dL) | 51.9 [13.0–184.5] | 53.3 [13.0–184.5] | 51.0 [17.4–118.0] | 0.708 |
| Creatinine (mg/dL) | 4.3 [0.5–16.2] | 4.5 [0.7–16.2] | 3.8 [0.5–10.8] | 0.051 |
| Total cholesterol (mg/dL) | 127.5 [50–290] | 129.0 [50–239] | 121.0 [50–290] | 0.526 |
| Total calcium (mg/dL) | 8.0 [5.5–11.1] | 8.0 [5.5–10.2] | 8.0 [5.7–11.1] | 0.292 |
| Phosphorus (mg/dL) | 4.0 [0.3 –10.7] | 4.1 [1.2–10.7] | 3.9 [0.3–7.4] | 0.175 |
| Sodium (mEq/L) | 138.0 [121–153.6] | 138.0 [126–147.0] | 137.8 [121–153.6] | 0.821 |
| Potassium (mEq/L) | 4.4 [2.8–7.8] | 4.5 [2.8–7.0] | 4.3 [2.8–7.8] | |
| Body composition (median [range]) | ||||
| ECW (L) | 13.9 [7.8–31.1] | 14.4 [7.8–31.1] | 13.7 [8.4–23.7] | 0.137 |
| ICW (L) | 13.3 [7.9–30.4] | 14.3 [7.9–30.4] | 11.9 [8.2–20.7] | 0.012 |
| TBW (L) | 27.3 [16.3–53.5] | 28.4 [16.3–53.5] | 26.0 [18.3–43.7] | 0.028 |
| ECW/ICW ratio | 1.10 [0.53–1.90] | 1.07 [0.53–1.90] | 1.13 [0.75–1.56] | 0.101 |
| LTI (kg/m2) | 10.3 [5.3–26.1] | 11.3 [5.8–26.1] | 9.7 [5.3–23.3] | 0.089 |
| FTI (kg/m2) | 10.8 [0.1–33.8] | 10.2 [0.1–33.8] | 11.2 [4.3–25.0] | 0.180 |
| LTM (kg) | 25.16 [2.2–69.4] | 27.6 [2.2–69.4] | 23.2 [13.8–49.4] | 0.097 |
| ATM (kg) | 24.9 [0.2–56.2] | 24.2 [0.2–52.2] | 25.1 [2.4–56.2] | 0.162 |
| FAT (kg) | 19.0 [0.3–41.3] | 18.3 [0.3–38.4] | 19.1 [7.2–41.3] | 0.133 |
| Dry weight (kg) | 52.8 [24.8–92.5] | 53.3 [24.8–89.3] | 51.5 [32.8–92.5] | 0.641 |
| BMI (kg/m2) | 23.6 [15.1–44.3] | 23.5 [15.1–34.2] | 23.8 [15.3–44.3] | 0.255 |
| Information on initiating hemodialysis (median [range]) | ||||
| Ultrafiltration volume (L) | 1.5 [0.2–4.0] | 1.5 [0.3–4.0] | 1.5 [0.2–4.0] | 0.268 |
| Further management [n (%)] | ||||
| VA creation | 121 (72.9) | 89 (86.4) | 32 (50.8) | <0.001 |
| VA abandonment | 45 (27.1) | 14 (13.6) | 31 (50.2) | |
| Nutrient score (median [range]) | ||||
| CONUT score | 6.0 [0–12] | 5.0 [0–12] | 7.0 [0–12] | 0.001 |
| GNRI score | 91.5 [64.6–125.0] | 93.7 [68.0–118.7] | 87.8 [64.6–125.0] | 0.018 |
| Permanent catheter use date (median [range]) |
69.0 [1–178] | 88.0 [6–178] | 63.0 [1–141] | <0.001 |
ATM, adipose-tissue mass; BMI, body mass index; BUN, blood urea nitrogen; CONUT, controlling nutritional status; CRP, C-reactive protein; ECW, extracellular water; FAT, fat mass; VA, vascular access; FTI, fat-tissue index; GNRI, geriatric nutritional risk index; ICW, intracellular water; LTI, lean-tissue index; LTM, lean-tissue mass; NOAC, nonvitamin K antagonist oral anticoagulant; TBW, total body water.