TABLE 3.
Sensitivity and specificity of EIA for serodiagnosis of pulmonary MAC disease
| Group | No. | IgG
|
IgA
|
IgM
|
|||
|---|---|---|---|---|---|---|---|
| Sensitivity (no. of seropositives) | Specificity (no. of seronegatives) | Sensitivity (no. of seropositives) | Specificity (no. of seronegatives) | Sensitivity (no. of seropositives) | Specificity (no. of seronegatives) | ||
| MAC disease | 106 | 72.6 (77) | 27.4 (29) | 92.5 (98) | 7.5 (8) | 78.3 (83) | 21.7 (23) |
| MAC colonization | 11 | 9.1 (1) | 90.9 (10) | 9.1 (1) | 90.9 (10) | 18.2 (2) | 81.8 (9) |
| M. kansasii disease | 30 | 6.7 (2) | 93.3 (28) | 10.0 (3) | 90.0 (27) | 16.7 (5) | 83.3 (25) |
| Tuberculosis | 77 | 10.4 (8) | 89.6 (69) | 5.2 (4) | 94.8 (73) | 5.2 (4) | 94.8 (73) |
| Healthy subjects | 126 | 6.3 (8) | 93.7 (118) | 3.2 (4) | 96.8 (122) | 8.7 (11) | 91.3 (115) |