Table 3 Coordinates of the ROC curves in Fig. 5
Test result variables | Positive if greater than or equal to a or b# | Sensitivity | 1 - Specificity |
|---|---|---|---|
aNumber of youngstock antibody positive out of ten tested without delay | −1.00 | 1.000 | 1.000 |
.50 | .909 | .500 | |
1.50 | .909 | .167 | |
2.50 | .909 | 0.000 | |
3.50 | .818 | 0.000 | |
5.00 | .727 | 0.000 | |
6.50 | .636 | 0.000 | |
7.50 | .545 | 0.000 | |
9.00 | .273 | 0.000 | |
11.00 | 0.000 | 0.000 | |
bBulk milk antibody OD ratio without delay | −.8500 | 1.000 | 1.000 |
.2400 | 1.000 | .857 | |
.3750 | 1.000 | .714 | |
.4300 | 1.000 | .571 | |
.4550 | 1.000 | .429 | |
.4950 | 1.000 | .286 | |
.5300 | .900 | .286 | |
.6050 | .800 | .286 | |
.7000 | .800 | .143 | |
.7650 | .700 | .143 | |
.8250 | .600 | .143 | |
.8550 | .500 | .143 | |
.8750 | .400 | .143 | |
.8950 | .300 | .143 | |
.9100 | .200 | .143 | |
.9250 | .200 | 0.000 | |
.9800 | .100 | 0.000 | |
2.0300 | 0.000 | 0.000 |