Table 2. Validating the InterVA model against the physician in diagnosing COD categories in northern Ethiopia from 01 January 2010–15 February 2012.
| Five COD categories | Sensitivity (%) (%) | PPV (%) | Specificity (%) | NPV |
|---|---|---|---|---|
| 1. Pulmonary TB | 81.9 | 52.4 | 77.7 | 93.5 |
| 2. Injuries/accidents | 76.5 | 95.1 | 99.4 | 96.7 |
| 3. Maternity-related death | 72.7 | 80.0 | 99.5 | 99.2 |
| 4. Diabetes | 61.5 | 47.0 | 97.7 | 98.7 |
| 5. Cardiovascular | 45.8 | 51.2 | 94.2 | 92.9 |
| 6. Other infectious diseases | 41.4 | 60.0 | 97.9 | 95.6 |
| 7. Other non-communicable diseases | 36.4 | 49.1 | 91.2 | 86.0 |
| 8. HIV/AIDS-related death | 33.3 | 51.6 | 95.8 | 91.5 |
| 9. Digestive diseases | 13.3 | 25.0 | 98.5 | 96.8 |