Table 3 Model 1 ‘Physiological status’ and ‘region’ as potential risk factors for reactivity in the comparative tuberculin test on positive herds with ≥5 tested animals (4,776 observations within 344 positive herds) and animals tested, number and proportion of positive reactors in all positive farms (5269 observation). Estimated variance for herd: 1.118 on the logit scale
From: Prevalence and risk factors of bovine tuberculosis in dairy cattle in Eritrea
Physiological status and region | OR | 95Â % confidence interval | Number and % tested and % positive reactors in positive farms | |||
|---|---|---|---|---|---|---|
Lower bound | Upper bound | Tested | % tested | % positive reactors | ||
Calf (reference) | 1.0 | Â | Â | 1613 | 30.6 | 14.6 |
Bull | 5.2 | 3.3 | 8.3 | 147 | 2.8 | 30.6 |
Heifer empty | 2.5 | 1.8 | 3.5 | 533 | 10.1 | 22.1 |
Heifer pregnant | 5.8 | 4.2 | 8.1 | 460 | 8.7 | 34.4 |
Lactating empty | 8.2 | 6.3 | 10.6 | 996 | 18.9 | 43.9 |
Lactating pregnant | 10.8 | 8.4 | 13.9 | 1191 | 22.6 | 46.9 |
Dry pregnant | 10.2 | 7.0 | 14.8 | 329 | 6.2 | 42.3 |
Anseba region (reference) | 1.0 | Â | Â | 397 | 7.5 | 1.76 |
Debub region | 8.5 | 1.9 | 37.1 | 1647 | 31.30 | 30.12 |
Maekel region | 13.0 | 3.0 | 46.1 | 3225 | 61.21 | 36.84 |