TableĀ 4

Sensitivities, specificities, PPV, and negative predictive value (NPV) for selected objective parameters for predicting positive radiological findings in patients with TBI

ParameterSensitivity (%)Specificity (%)ROCPPV (%)NPV (%)
GCS<867.484.30.7680.572.9
PI>1.371.4490.6057.464.1
NPi<3.038.882.40.6167.958.3
EDV<3028.682.40.5560.954.6
ONSD >0.6026.574.50.515051.4
Lactate2.01000.6710051.5
  • EDV, end diastolic velocity (TCD); NPi, neurologic pupillary index; PI, pulsatility index; ONSD, optic nerve sheath diameter.