Table 3 Animal-level prevalence of Campylobacter fetus in bulls in three northern states of Nigeria by management system, age and breed, adjusted for sampling weights and test sensitivity and specificity
From: Prevalence of bovine genital campylobacteriosis and trichomonosis of bulls in northern Nigeria
Variable | n | % positive | 95% CI |
|---|---|---|---|
Management system | Â | Â | Â |
  Zero-grazing | 68 | 17.6 | 12.6, 23.9 |
  Commercial | 31 | 24.7 | 9.9, 50.1 |
  Agro-pastoral | 347 | 13.5 | 8.4, 21.0 |
  Pastoral | 156 | 22.2 | 14.8, 32.0 |
Age | Â | Â | Â |
  <4 years | 23 | 8.8 | 1.6, 36.2 |
  4-5 years | 339 | 13.6a | 10.4, 17.7 |
  5-7 years | 200 | 18.7 | 12.1, 27.9 |
  >7 years | 30 | 33.4b | 16.6, 56.3 |
Breed | Â | Â | Â |
  Bunaji | 344 | 11.5c | 8.1, 16.1 |
  Gudali | 149 | 28.8d | 19.8, 39.9 |
  Bos taurus | 28 | 17.8 | 5.2, 46.7 |
  B. taurus × B. indicus | 31 | 18.1 | 3.5, 58.6 |
  Other B. indicus | 50 | 16.4 | 7.3, 32.9 |