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Sensitivity and Specificity of the CXR in this sample using the initial RT-PCR result as the benchmark prior to any independent reviews of discordant case.
| PCR |
Total | ||
|---|---|---|---|
| Positive | Negative | ||
| CXR | |||
| Positive | 180 | 62 | 242 |
| Negative | 31 | 47 | 78 |
| 320 | |||
| Sensitivity | 85.3 | ||
| Specificity | 43.1 | ||
| PPV | 74.4 | ||
| NPV | 60.3 | ||
| Accuracy | 70.9 | ||
PPV = Positive Predictor value, NPV = Negative Predictor Value.
