Table 4 Baseline characteristics of patients with and without nerve injury
Variables | Nerve injury (n = 16) | No nerve injury (n = 493) | Z/χ2 | P |
|---|---|---|---|---|
Age (years) | 49 (45, 55.5) | 56 (48, 65) | 2.22 | 0.02 |
Male | 15 (93.7) | 338 (68.6) | 3.51 | 0.02 |
BMI (kg/m2) | 22.5 (21.1, 23.8) | 22.8 (21.0, 25.3) | 0.86 | 0.39 |
Diabetes mellitus | 1 (6.3) | 55 (11.2) | 0.38 | 0.99 |
Hypertension | 3 (18.8) | 89 (18.1) | 0.005 | 0.99 |
Smoking within last 1 year | 4 (25) | 158 (32.1) | 0.35 | 0.78 |
Laboratory test | ||||
PT (s) | 11.6 (10.8, 12.3) | 11.2 (10.7, 11.9) | 1.49 | 1.34 |
APTT (s) | 28.7 (27.2, 29.7) | 28.0 (26.4, 29.9) | 1.09 | 0.27 |
Hematocrit (%) | 43.5 (39.5, 47.0) | 40.0 (37.0, 44.0) | 2.06 | 0.03 |
Platelet count (× 109/L) | 163 (132.5, 194.5) | 170 (132.0, 226.0) | 0.92 | 0.35 |
Glucose (mmol/L) | 5.19 (4.5, 5.8) | 5.05 (4.6, 5.8) | 0.06 | 0.95 |
Type of Surgery | ||||
Liver | 13 (81.3) | 234 (47.5) | 7.56 | 0.06 |
Gastrointestinal | 1 (6.3) | 164 (33.3) | ||
Pancreas | 1 (6.3) | 46 (9.3) | ||
Biliary | 0 (0) | 23 (4.7) | ||
Other | 1 (6.3) | 26 (5.3) | ||
ASA status | ||||
II | 12 (75) | 370 (75.1) | 0.001 | 0.99 |
III | 4 (25) | 123 (24.9) | ||
Intraoperative RBC transfusion ≥ 4U | 1 (6.3) | 11 (2.2) | 1.08 | 0.32 |
Cannula indwelling time, h | 5 (3.9, 6.2) | 4.8 (3.8, 5.9) | 0.67 | 0.50 |