Table 2:
Patients’ baseline characteristics.
| Demographic data | Results, mean (SD) or n (%) | Unknown, n (%) |
|---|---|---|
| Age (years) | 62 (13.9) | 0 |
| Male | 618 (59.8%) | 0 |
| BMI (kg/m2) | 29 (7) | 0 |
| Weight (kg) | 82.9 (20.4) | 0 |
| Clinical parameters | ||
| Diabetes mellitus | 465 (45%) | 0 |
| Smoking | 225 (21.8%) | 20 (1.9%) |
| Hypertension | 767 (74.2%) | 1 (0.1%) |
| Heart failure | 147 (14.2%) | 0 |
| Ischaemic heart disease | 195 (18.9%) | 5 (0.5%) |
| History of cancer | 153 (14.8%) | 5 (0.5%) |
| Present CV line or pacemaker | 362 (35%) | 0 |
| - Right side | 317 (86.4%) | 2 (0.5%) |
| - Left side | 45 (12.3%) | |
| - Both sides | 3 (0.8%) | |
| Previous CV line or pacemaker | 203 (19.6%) | 0 |
| - Right side | 132 (63.8%) | 19 (9.2%) |
| - Left side | 23 (11.1%) | |
| - Both sides | 33 (15.9%) | |
| Physical examination and sonographic mapping | ||
| Nondominant arm mapped | 820 (79.3%) | 42 (4.1%) |
| Allen's test negative | 953 (92.2%) | 42 (4.1%) |
| Arteries | ||
| Radial artery diameter (mm) | 1.92 (±1.07) | 1 (0.1%) |
| Ulnar artery diameter (mm) | 1.42 (±1.04) | 3 (0.3%) |
| Brachial artery diameter (mm) | 4.36 (±1.02) | 1 (0.1%) |
| Patent axillary artery yes | 1023 (98.9%) | 0 |
| Veins | ||
| Cephalic vein depth in wrist and forearm area (mm) | 2.48 (±2.08) | 6 (0.6%) |
| Cephalic vein diameter in wrist and forearm (mm) | 1.98 (±1.34) | 0 |
| Cephalic or basilic or median cubital vein diameter in cubital area (mm) | 3.66 (±1.5) | 2 (0.2%) |
| Basilic vein diameter in forearm (mm) | 1.33 (±1.31) | 3 (0.3%) |
| Basilic vein diameter in arm (mm) | 3.13 (±1.98) | 0 |
| Patent axillary vein yes | 1020 (98.6%) | 0 |
SD, standard deviation; CV, central venous.