Table 4 Predictive ability of MWA threshold of 4 mmHg.

From: Utility of the Tympanic Membrane Pressure Waveform for Non-invasive Estimation of The Intracranial Pressure Waveform

Criteria Number Test results
Original & Estimate ≥4 mmHg 13 Sensitivity 65%
Specificity 100%
PPV 100%
NPV 53%
Original & Estimate <4 mmHg 8
Original ≥4 mmHg & Estimate <4 mmHg 7
Original <4 mmHg & Estimate ≥4 mmHg 0
  1. PPV: Positive predictive value. NPV: Negative predictive value.