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Likelihood ratios for five S/P levels of the JTC-ELISA result
| S/P range | No. (%) of infected cows | No. (%) of noninfected cows | Likelihood ratio (95% CI) |
|---|---|---|---|
| <0.10 | 158 (35.6) | 400 (97.1) | 0.37 (0.32-0.42) |
| 0.11-0.15 | 39 (8.8) | 8 (1.9) | 4.52 (2.14-9.56) |
| 0.16-0.20 | 39 (8.8) | 4 (0.9) | 9.05 (3.26-25.10) |
| 0.21-0.30 | 39 (8.8) | 0 (0) | ∞ (4.46-∞) |
| >0.30 | 169 (38.1) | 0 (0) | ∞ (19.60-∞) |
| Total | 444 | 412 |
