Table 2.
M. haemolytica IgG, IgM, and IgA ELISA diagnostic sensitivity and specificity by cutoff.
| IgG | IgM | IgA | ||||
|---|---|---|---|---|---|---|
| Cutoff (S/P) | Diagnostic Sensitivity (95% CI) | Diagnostic Specificity (95% CI) | Diagnostic Sensitivity (95% CI) | Diagnostic Specificity (95% CI) | Diagnostic Sensitivity (95% CI) | Diagnostic Specificity (95% CI) |
| 0.1 | 97.8 (93.3, 100.0) | 59.0 (49.0, 69.0) | 100.0 (100.0, 100.0) | 6.0 (2.0, 11.0) | 97.8 (93.3, 100.0) | 50.0 (40.0, 60.0) |
| 0.2 | 95.6 (88.9, 100.0) | 67.0 (58.0, 76.0) | 100.0 (100.0, 100.0) | 20.0 (13.0, 28.0) | 88.9 (77.8, 97.8) | 74.0 (65.0, 82.0) |
| 0.3 | 93.3 (84.4, 100.0) | 75.0 (66.0, 83.0) | 100.0 (100.0, 100.0) | 31.0 (22.0, 40.0) | 68.9 (55.6, 82.2) | 89.0 (82.0, 95.0) |
| 0.4 | 91.1 (82.2, 97.8) | 85.0 (78.0, 91.0) | 100.0 (100.0, 100.0) | 45.0 (36.0, 55.0) | 57.8 (44.4, 71.1) | 94.0 (89.0, 98.0) |
| 0.5 | 91.1 (82.2, 97.8) | 87.0 (80.0, 93.0) | 100.0 (100.0, 100.0) | 52.0 (42.0, 62.0) | 46.7 (33.3, 62.2) | 96.0 (92.0, 99.0) |
| 0.6 | 86.7 (75.6, 95.6) | 88.0 (81.0, 94.0) | 97.8 (93.3, 100.0) | 61.0 (51.0, 70.0) | 35.6 (22.2, 48.9) | 96.0 (92.0, 99.0) |
| 0.7 | 77.8 (64.4, 88.9) | 90.0 (84.0, 95.0) | 93.3 (84.4, 100.0) | 66.0 (57.0, 75.0) | 24.4 (13.3, 37.8) | 96.0 (92.0, 99.0) |
| 0.8 | 73.3 (60.0, 86.7) | 90.0 (84.0, 95.0) | 91.1 (82.2, 97.8) | 77.0 (69.0, 85.0) | 20.0 (8.9, 31.1) | 99.0 (97.0, 100.0) |
| 0.9 | 73.3 (60.0, 86.7) | 90.0 (84.0, 95.0) | 84.4 (73.3, 93.3) | 82.0 (74.0, 89.0) | 20.0 (8.9, 31.1) | 99.0 (97.0, 100.0) |
| 1.0 | 66.7 (53.3, 80.0) | 90.0 (84.0, 95.0) | 82.2 (71.1, 93.3) | 89.0 (82.0, 95.0) | 20.0 (8.9, 31.1) | 99.0 (97.0, 100.0) |