Table 4 Predictive value of scoring systems
MTP | Blood transfusion | Exploratory Laparotomy | Mortality | |
|---|---|---|---|---|
Shock Index (≥0.8) | ||||
Sensitivity | 85.1% | 73.1% | 59.1% | 82% |
Specificity | 54.6% | 65.6% | 52.9% | 52.5% |
Positive Predictive value | 21.8% | 60.2% | 33.6% | 14.2% |
Negative Predictive value | 96.1% | 77.4% | 76.3% | 96.8% |
Positive likelihood ratio | 1.87 | 2.12 | 1.25 | 1.72 |
Negative likelihood ratio | 0.27 | 0.41 | 0.77 | 0.34 |
Shock Index (≥0.9) | ||||
Sensitivity | 75.7% | 59.7% | 46.3% | 70% |
Specificity | 70.5% | 81.7% | 68.9% | 67.8% |
Positive Predictive value | 27.6% | 70% | 37.4% | 17.2% |
Negative Predictive value | 95.1% | 74% | 76.2% | 95.9% |
Positive likelihood ratio | 2.56 | 3.26 | 1.48 | 2.17 |
Negative likelihood ratio | 0.34 | 0.49 | 0.77 | 0.44 |
Shock Index (≥1.0) | ||||
Sensitivity | 63.5% | 47.9% | 36% | 62% |
Specificity | 79.1% | 88.9% | 77.5% | 77% |
Positive Predictive value | 31.1% | 75.5% | 39.1% | 20.5% |
Negative Predictive value | 93.6% | 70.5% | 75.1% | 95.5% |
Positive likelihood ratio | 3.03 | 4.31 | 1.6 | 2.69 |
Negative likelihood ratio | 0.46 | 0.58 | 0.82 | 0.49 |
ABC Score | ||||
Sensitivity | 44.9% | 28.1% | 32% | 45.5% |
Specificity | 90.2% | 95.7% | 92.6% | 88.5% |
Positive Predictive value | 40.8% | 82.9% | 63.2% | 26.3% |
Negative Predictive value | 91.6% | 64.5% | 77.5% | 94.7% |
Positive likelihood ratio | 4.58 | 6.53 | 4.32 | 3.95 |
Negative likelihood ratio | 0.61 | 0.75 | 0.73 | 0.61 |