Table 1.
Demographics, injury, and laboratory characteristics of patients before and after PS matching based on ROTEM compared with conventional plasmatic coagulation tests
| ROTEM before PS matching(n = 350) | Plasmatic tests before PS matching(n = 412) | p | ROTEM after PSatching(n = 332) | Plasmatic tests after PS matching(n = 332) | p | |
|---|---|---|---|---|---|---|
| Male sex, n (%) | 138 (39.43) | 161 (39.08) | 0.49 | 133 (40.06) | 119 (35.84) | 0.15 |
| Weight, kg | 21.89 ± 9.27 | 22.31 ± 9.29 | 0.53 | 22.28 ± 9.07 | 22.14 ± 9.39 | 0.85 |
| Interval from injury (hours) | 5.53 ± 4.68 | 5.79 ± 3.18 | 0.38 | 5.39 ± 3.04 | 5.74 ± 3.22 | 0.16 |
| Fibrinogen (g/L) | 1.57 ± 0.45 | 1.58 ± 0.46 | 0.71 | 1.57 ± 0.45 | 1.58 ± 0.46 | 0.74 |
| Platelet count (× 109/L) | 251.70 ± 77.76 | 256.74 ± 78.79 | 0.38 | 255.91 ± 75.91 | 256.91 ± 79.60 | 0.87 |
| Initial hemoglobin, g/dL | 103.69 ± 16.30 | 106.52 ± 15.45 | 0.014 | 104.72 ± 14.96 | 106.24 ± 14.96 | 0.19 |
| Lactate on admission, mmol/L | 3.91 ± 1.04 | 3.82 ± 0.99 | 0.21 | 3.84 ± 0.97 | 3.85 ± 0.99 | 0.91 |
| PT (seconds) | 13.16 ± 2.02 | 13.04 ± 1.72 | 0.36 | 13.07 ± 1.78 | 13.08 ± 1.78 | 0.94 |
| APTT (seconds) | 27.81 ± 6.83 | 27.57 ± 5.33 | 0.60 | 27.63 ± 6.30 | 27.74 ± 5.50 | 0.81 |
| INR, median (IQR) | 1.09 (1.02, 1.16) | 1.08 (1.02, 1.14) | 0.75 | 1.09 (1.02, 1.15) | 1.08 (1.02, 1.14) | 0.96 |
| Coagulopathy on admission, n (%) | 74 (21.14) | 82 (19.90) | 0.43 | 65 (19.58) | 65 (19.58) | 0.50 |
| ISS score, median (IQR) | 11.75 ± 7.58 | 10.52 ± 6.38 | 0.015 | 11.06 ± 6.71 | 10.59 ± 6.58 | 0.36 |
| Admission base deficit> 6 mmol/L, n (%) | 73 (20.86) | 74 (17.96) | 0.18 | 61 (18.37) | 60 (18.07) | 0.50 |
| Unstable hemodynamics, n (%) | 56 (16.00) | 49 (11.89) | 0.063 | 43 (12.95) | 42 (12.65) | 0.50 |
Data are mean ± standard deviation, median (IQR), or n (%) as indicated.
ROTEM: rotational thromboelastometry; PS: propensity score; INR: international normalized ratio; IQR: 25th to 75th interquartile range; ISS: injury severity scale; PT: prothrombin time; APTT: activated partial thromboplastin time.