Table 2 Performance of bleeding scores
Overall | Discrimination C-statistic (95% CI) | Calibration | |||||||
|---|---|---|---|---|---|---|---|---|---|
Brier score | For early death (within 24 h) | For massive transfusion (3 RBC/1 h) | For massive transfusion (10 RBC/24 h) | Outcome observed % (95% CI)a | Outcome predicted % (95% CI)a | P value | Calibration intercept (95% CI) | Calibration slope (95% CI) | |
Prehospital | |||||||||
BATT score | 0.036 | 0.86 (0.84–0.87)* | 0.75 (0.73–0.78)* | 0.87 (0.84–0.90) | 4.0 (3.6–4.3) | 2.1 (2.0–2.2) | < 0.001 | 0.008 (0.005–0.012) | 1.48 (1.40–1.56) |
Shock Index b | – | 0.53 (0.50–0.56) | 0.71 (0.68–0.73) | 0.84 (0.80–0.88) | – | – | – | – | |
ABC score b,c | – | 0.63 (0.60–0.65) | 0.66 (0.64–0.69) | 0.82 (0.77–0.86) | – | – | – | – | |
TASH scored | – | – | – | – | – | – | – | ||
In-Hospital | |||||||||
BATT score | 0.034 | 0.87 (0.86–0.88)* | 0.77 (0.75–0.79) | 0.89 (0.86–0.91) | 4.0 (3.6–4.3) | 2.7 (2.6–2.8) | < 0.001 | 0.005 (0.001–0.008) | 1.31 (1.24–1.37) |
Shock Index b | – | 0.61 (0.58–0.64) | 0.74 (0.72–0.77) | 0.89 (0.86–0.92) | – | – | – | – | |
ABC score b | – | 0.66 (0.63–0.68) | 0.70 (0.67–0.72) | 0.84 (0.80–0.87) | – | – | – | – | |
TASH score | 0.060 | 0.74 (0.72–0.76) | 0.80 (0.78–0.82)** | 0.94 (0.92–0.95)* | 4.0 (3.6–4.3) | 6.1 (5.8–6.5) | < 0.001 | 0.011 (0.008 -0.015) | 0.46 (0.44–0.48) |