Table 3 Sensitivity, Specificity, and positive and negative predictive value of the app when using the 3.0Δ threshold
From: A smartphone ocular alignment measurement app in school screening for strabismus
PACT Positive | PACT Negative | Total | Predictive Value | |
|---|---|---|---|---|
App Positive | 5 | 8 (false) | 13 | PPV = 38.5% |
App Negative | 1 (false) | 26 | 27 | NPV = 3.7% |
Total | 6 | 34 | ||
Sensitivity = 83.3% | Specificity = 76.5% |