Table 3.
Screening performance characteristics of CT scan in detection of upper gastrointestinal tract injuries following caustic ingestion
| Characteristics | Esophagus (95% CI) | Stomach (95% CI) |
|---|---|---|
| True positive | 26 (76.47) | 26 (76.47) |
| True negative | 4 (11.76) | 2 (5.88) |
| False positive | 3 (8.82) | 3 (8.82) |
| False negative | 1 (2.94) | 3 (8.82) |
| Sensitivity | 96.29)79.11- 99.80( | 89.65 (71.50 - 97.28) |
| Specificity | 57.14 (20.23 - 88.19) | 40.00 (7.25 - 82.95) |
| Positive Predictive Value | 89.65 (71.50- 97.28) | 89.65 (71.50 - 97.10) |
| Negative Predictive Value | 80.00 (29.87 - 98.94) | 40.00 (7.25 - 82.95) |
| Positive Likelihood Ratio | 8.66 (2.94 - 25.43) | 8.66 (2.94 - 25.43) |
| Negative Likelihood Ratio | 0.25 (0.03 - 1.59) | 1.50 (0.41 - 5.52) |
CI: confidence interval.