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Table 2 Brucellosis seropositivity among slaughtered cattle (n = 590) in Ngaoundéré municipal abattoir of Cameroon according to risk factors

From: Seroprevalence and risk factors of brucellosis among slaughtered indigenous cattle, abattoir personnel and pregnant women in Ngaoundéré, Cameroon

Category Variable Numbera (Positive) Seropositivity using i-ELISA
% [95%CI]
P-value (χ2)
Breed Gudali 384 (8) 2.08 [0.01–3.51] < 0.00001* (43.2371)
Bokolo 13 (1) 7.69 [0–22.17]
Djafoun 36 (6) 16.67 [4.49–28.85]
Akou 112 (19) 16.96 [0.10–23.91]
Cross-breedb 45 (1) 2.22 [0–6.52]
Sex Female 529 (32) 6.05 [4.02–8.08] 0.7232 (0.1254)
Male 61 (3) 4.92 [0–10.34]
Age (years) Young (<  4) 60 (2) 3.33 [0–7.87] 0,3095 (2.3453)
Adult (4–8) 356 (19) 5.34 [3.00–7.68]
Old (> 8) 174 (14) 8.05 [4.00–12.09]
Body Condition Score Poor (< 3) 130 (13) 10.0 [4.84–15.16] 0.0828 (4.9807)
Good (3–4) 412 (20) 4.85 [2.78–6.92]
Very Good (> 4) 48 (2) 4.17 [0–9.82]
State of gravidity Pregnant 185 (11) 5.95 [2.54–9.36] 0.9418 (0.0053)
Non-pregnant 344 (21) 6.10 [3.57–8.63]
  1. aObserved reactions of individual animals (n = 590) or of animals whose data where noted (n depends on number of animals e.g. gravidity) in the category
  2. bCrossbreed between local breeds
  3. *Significantly different (P < 0.05)