Table 2.
Patients stratified according to clot strength
| Low clot strength n = 17 |
Normal or high clot strength n = 72 |
p-value | |
|---|---|---|---|
| Age (years) | 43 (32-54) | 38 (34-43) | 0.38 |
| Males | 10 (59%) | 49 (68%) | 0.47 |
| Blunt trauma | 16 (94%) | 60 (83%) | 0.45 |
| Type of trauma | 0.66 | ||
| Thoracic | 1 | 14 | |
| Abdominal | 1 | 6 | |
| Extremities | 0 | 4 | |
| Cerebral | 5 | 13 | |
| Multi trauma | 8 | 29 | |
| Other | 2 | 6 | |
| Injury Severity Score | 27 (20-34) | 19 (17-22) | 0.006 |
| Laboratory analyses | |||
| Hemoglobin (g/dL) | 9.7 (8.5-10.7) | 11.9 (11.5-12.4) | <0.001 |
| Platelet count (109/L) | 140 (112-168) | 214 (196-231) | <0.001 |
| APTT (seconds) | 49 (37-66) | 29 (27-30) | <0.001 |
| INR (arbitrary units) | 1.4 (1.3-1.5) | 1.2 (1.1-1.2) | <0.001 |
| Glucose (mmol/L) | 10.3 (8.7-12.1) | 7.7 (7.2-8.3) | 0.001 |
| Lactate (mmol/L) | 3.3 (2.4-4.6) | 2.5 (2.1-2.9) | 0.11 |
| TEG | |||
| R (minutes) | 6.3 (5.2-7.4) | 5.2 (4.9-5.5) | 0.01 |
| Angle (degrees) | 47 (40-53) | 65 (63-67) | 0.001 |
| MA (mm) | 39 (34-44) | 60 (59-61) | N/A |
| Ly30 (%) | 0.8 (0.0-1.7) | 0.7 (0.5-0.9) | 0.58 |
| Transfusions in units | |||
| RBC | 6.4 (3.7-11.2) | 2.9 (2.2-3.8) | 0.02 |
| FFP | 3.6 (1.9-6.6) | 2.0 (1.5-2.6) | 0.06 |
| PC | 2.3 (1.5-3.6) | 1.5 (1.2-1.7) | 0.04 |
| Length of stay (days) | 4.9 (2.7-8.7) | 12.3 (9.6-15.7) | 0.002 |
Data of patients with low clot strength (maximal amplitude < 50 mm) compared to patients with normal or high clot strength (maximal amplitude ≥ 50 mm). Frequencies are stated as count with percentage in parenthesis. Age, laboratory and thrombelastographic (TEG) analyses, blood product transfusions, Injury Severity Score and length of stay are stated as means with 95% Confidence Intervals. Activated partial thromboplastin time (APTT), international normalized ratio (INR), packed red blood cells (RBC), fresh frozen plasma (FFP), platelet concentrates (PC).