Table 2.
The preoperative lab test of the primary TKA patients
| Parameters | LHBL (n = 1208) | HHBL (n = 236) | p-value |
|---|---|---|---|
| Hb (g/L) | 128.0 (119.0, 136.0) | 130.0 (121.0, 138.0) | 0.013a |
| PLT (× 109/L) | 228.0 (191.3, 268.0) | 208.0 (173.25, 247.0) | < 0.001a |
| WBC (× 109/L) | 0.39 (0.22 to 0.75) | 0.34 (0.22 to 0.64) | 0.104a |
| RBC (× 109/L) | 4.29 (3.97 to 4.57) | 4.32 (4.04 to 4.60) | 0.211a |
| Hct (L/L) | 0.383 ± 0.038 | 0.389 ± 0.038 | 0.019b |
| TT (s) | 17.0 (16.5, 17.6) | 17.0 (16.3, 17.6) | 0.591a |
| APTT (s) | 26.9 (25.4, 28.6) | 27.2 (25.7, 29.0) | 0.081a |
| PT (s) | 11.5 (11.1, 12.0) | 11.5 (11.1, 12.0) | 0.400a |
| INR | 0.97 (0.94, 1.01) | 0.98 (0.95, 1.02) | 0.132a |
| Fibrinogen (g/L) | 3.0 (2.6, 3.4) | 3.0 (2.5, 3.49) | 0.861a |
| D-dimer (μg/mL) | 0.39 (0.22, 0.75) | 0.34 (0.22, 0.64) | 0.093a |
Hb hemoglobin, PLT platelet, WBC white blood cell count, RBC red blood cell count, Hct hematocrit, TT thromboplastin time, APTT activated partial thromboplastin time, PT prothrombin time, INR international normalized ratio
aMann–Whitney U-test
bStudent t-test