Table 3 Agreement between diagnostic tests (Cohen’s kappa) at each sampling time. Total number of observations is given in brackets, and any samples taken within 180 days of treatment are excluded
| Â | Spring 2015 | Summer 2015 | Autumn 2015 | Winter 2015/16 | Spring 2016 | Summer 2016 | Winter 2016/17 |
|---|---|---|---|---|---|---|---|
Serum ELISA vs copro-antigen ELISA | 0.794 (84) | 0.747 (150) | 0.571 (167) | 0.830 (176) | 0.807 (175) | 0.721 (155) | 0.811 (126) |
Serum ELISA vs FEC | 0.476 (87) | 0.525 (150) | 0.357 (167) | 0.414 (175) | 0.540 (175) | 0.610 (155) | 0.538 (126) |
Copro-antigen ELISA vs FEC | 0.710 (174) | 0.641 (157) | 0.520 (168) | 0.539 (175) | 0.662 (175) | 0.771 (156) | 0.574 (126) |