Table 4. Sensitivity and specificity of major UCODs evaluated by death certificates only.
| UCOD |
n of UCOD on the death certificates |
n of UCOD based on clinical and autopsy-derived information |
n of both UCODs truly classified (+) |
Sensitivity (%) | Specificity (%) | ||
| Point estimate |
95% CI | Point estimate |
95% CI | ||||
| Certain infectious and parasitic diseases | 16 | 15 | 6 | 40.0 | 16.3, 67.7 | 97.7 | 95.8, 98.9 |
| Malignant neoplasms | 156 | 182 | 146 | 80.2 | 73.7, 85.7 | 96.3 | 93.3, 98.2 |
| Stomach | 15 | 19 | 14 | 73.7 | 48.8, 90.9 | 99.8 | 98.7, 100 |
| Trachea, bronchus, and lung | 40 | 44 | 38 | 86.4 | 72.7, 94.8 | 99.5 | 98.2, 99.9 |
| Malignant lymphoma | 19 | 24 | 18 | 75.0 | 53.3, 90.2 | 99.8 | 98.7, 100 |
| Leukemia | 33 | 40 | 30 | 75.0 | 58.8, 87.3 | 99.3 | 97.9, 99.9 |
| Diseases of the circulatory system | 87 | 97 | 74 | 71.1 | 61.1, 79.9 | 94.9 | 92.1, 97.0 |
| Heart disease | 53 | 67 | 40 | 59.7 | 47.0, 71.5 | 96.6 | 94.3, 98.2 |
| Diseases of the respiratory system | 99 | 68 | 48 | 70.6 | 58.3, 81.0 | 86.7 | 82.8, 89.9 |
| Pneumonia | 57 | 22 | 10 | 45.5 | 24.4, 67.8 | 89.0 | 85.7, 91.8 |
| Diseases of the digestive system | 31 | 27 | 14 | 51.9 | 32.0, 71.3 | 96.0 | 93.6, 97.6 |
CI, confidence interval; UCOD, underlying cause of death.