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Table 2 Risk assessment for torso injuries in 215 stable trauma patients

From: Emergency department spirometric volume and base deficit delineate risk for torso injury in stable patients

Risk Factor # TI Rate Sensitivity Specificity NPV OR P-value
increased BD 121 41.3% 75.8% 52.3% 83.0% 3.4 .0001
increased lactate 78 39.7% 47.0% 68.5% 74.5% 1.9 .03
decreased PaO2/FiO2 45 48.9% 33.3% 84.6% 74.1% 2.7 .003
decreased SV 64 73.4% 71.2% 88.6% 87.4% 19.2 <<.0001
positive FAST 8 62.5% 7.6% 98.0% 70.5% 4.0 .06
chest/abdominal STI 82 37.8% 47.0% 65.8% 73.7% 1.7 .08
increased BD and/or decreased SV 144 43.8% 95.5% 45.6% 95.8% 17.6 <<.0001
  1. TI, torso injury; NPV, negative predictive value for a negative test; OR, odds ratio; BD, base deficit; SV, spirometric volume; FAST, focused-abdominal sonography for trauma; STI, soft tissue injury (abrasions, ecchymosis, laceration)