Table 1 Baseline demographics and clinical characteristics of the study population at the time of VA placement according to patient age
From: Effects of patient age on patency of chronic hemodialysis vascular access
|  | < 65 years n = 445 | ≥65 years n = 206 | P-value |
|---|---|---|---|
Age (years) | 50.0 ± 10.2 | 72.7 ± 5.5 | <  0.01 |
Female sex | 169 (38.0) | 92 (44.7) | 0.11 |
BMI (kg/m2) | 23.3 ± 3.6 | 23.1 ± 3.7 | 0.46 |
Type of VA | |||
 AVF | 398 (89.4) | 123 (59.7) | <  0.01 |
  Forearm | 206 (51.8) | 58 (47.2) | 0.37 |
  Upper arm | 192 (48.2) | 65 (52.8) |  |
 AVG | 47 (10.6) | 83 (40.3) |  |
  Forearm | 24 (51.1) | 25 (30.1) | 0.02 |
  Upper arm | 23 (48.9) | 58 (69.9) |  |
On hemodialysis | 232 (52.1) | 127 (61.7) | 0.02 |
Underlying diseases | |||
 Hypertension | 373 (83.8) | 181 (87.9) | 0.18 |
 DM | 200 (44.9) | 124 (60.2) | <  0.01 |
 Smoker | 105 (23.6) | 44 (21.4) | 0.53 |
 CVD | 55 (12.4) | 71 (34.5) | <  0.01 |
 CVA | 31 (7.0) | 43 (20.9) | <  0.01 |
 PAOD | 19 (4.3) | 17 (8.3) | 0.04 |
Medications | |||
 Anti-platelets | 184 (41.3) | 122 (59.2) | <  0.01 |
 Anti-coagulants | 28 (6.3) | 11 (5.3) | 0.63 |
Early mortalitya | 12 (2.7) | 16 (7.8) | <  0.01 |
Maturation failureb | 26 (5.8) | 11 (5.3) | 0.80 |
Early thrombosisc | 12 (2.7) | 10 (4.9) | 0.16 |