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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)