Table 1.
Comparison of baseline characteristics between the two groups
| Characteristics | TXA group (n=44) | Control group (n=46) | Statistic | P |
|---|---|---|---|---|
| Gender: Male/female | 23/21 | 20/26 | χ2=0.697 | 0.404 |
| Age (years) | 75.1±8.0 | 76.1±9.3 | t=−5.555 | 0.581 |
| Height (cm) | 152.2±11.0 | 155.4±8.5 | t=−1.544 | 0.127 |
| Weight (kg) | 53.1±8.5 | 54.8±6.0 | t=−1.110 | 0.271 |
| Side: Right/left | 21/23 | 19/27 | χ2=0.376 | 0.540 |
| AO/OTA fracture classification, n (%) | ||||
| 31-A1 | 10 (22.7) | 12 (26.1) | χ2=0.869 | 0.648 |
| 31-A2 | 30 (68.2) | 32 (69.6) | ||
| 31-A3 | 4 (9.1) | 2 (4.3) | ||
| ASA grade, n (%) | ||||
| I | 8 (18.2) | 10 (21.7) | χ2=0.708 | 0.871 |
| II | 19 (43.2) | 16 (34.8) | ||
| III | 15 (34.1) | 18 (39.1) | ||
| IV | 2 (4.5) | 2 (4.3) | ||
| Associated comorbidities, n (%) | ||||
| Hypertension | 18 (40.9) | 20 (43.5) | χ2=0.061 | 0.805 |
| Diabetes | 2 (4.5) | 5 (10.9) | χ2=0.527 | 0.468 |
| Cardiac disease | 10 (22.7) | 13 (28.3) | χ2=0.362 | 0.547 |
| Neurological disease | 10 (22.7) | 11 (23.9) | χ2=0.000 | 0.894 |
| Pulmonary disease | 2 (4.5) | 3 (6.5) | χ2=0.000 | >0.999 |
| Time from injury to operation (days) | 5.5±1.9 | 5.7±2.7 | t=0.435 | 0.665 |
| Anesthesia: General/spinal | 2/42 | 2/44 | χ2=0.000 | >0.999 |
| Preoperative transfusion rate, n (%) | 7/44 (15.9) | 6/46 (13.0) | χ2=0.149 | 0.699 |
| Preoperative Hb (g/dL) | 10.3±1.8 | 10.3±1.7 | t=−0.199 | 0.843 |
| PLT (×109/L) | 191.5±100.1 | 210.4±81.9 | t=−0.985 | 0.327 |
| PT (s) | 11.9±0.9 | 11.9±0.9 | t=0.189 | 0.850 |
| TT (s) | 18.6±1.2 | 18.6±1.6 | t=−0.024 | 0.981 |
| FIB (g/L) | 3.5±0.7 | 3.4±0.6 | t=0.153 | 0.897 |
Continuous values are reported as mean±SD. Hb=Hemoglobin, PLT=Platelet count, PT=Prothrombin time, TT=Thromboplastin time, FIB=Fibrinogen, SD=Standard deviation, ASA=American Society of Anesthesiologists, AO/OTA=American Orthopedic/Orthopedic Trauma Association