Table 4.
Brucellosis seropositivity among personnel of the Ngaoundéré municipal abattoir according to potential risk factors (n = 107)
| Variable | Number (positive) | Seropositivity using Brucella IgG ELISA % (95%CI) | Odds ratio (95%CI) | P-value | |
|---|---|---|---|---|---|
| Animal exposure at home | Yes | 46 (5) | 10.87 (1.87–19.86) | 1 | 0.4833 |
| No | 61 (8) | 13.11 (4.64–21.59) | 1.24 (0.38–4.07) | ||
| Consume raw milk | Yes | 49 (9) | 18.37 (7.53–29.21) | 3.04 (0.87–10.57) | 0.0650 |
| No | 58 (4) | 6.90 (0.38–13.42) | 1 | ||
| Use of protective equipment at work | Yes | 13 (0) | 0 | – | – |
| No | 92 (13) | 14.13 (7.01–21.25) | |||
| Manipulate with aborted fœtus | Yes | 23 (3) | 13.04 (0–26.81) | 1.11 (0.28–4.42) | 0.5625 |
| No | 84 (10) | 11.90 (4.98–18.83) | 1 | ||
| Knowledge of brucellosis | Yes | 12 (1) | 8.33 (0–23.97) | 0.63 (0.07–5.32) | 0.5547 |
| No | 95 (12) | 12.63 (5.95–19.31) | 1 | ||
| Animal exposure outside the abattoir and home | Yes | 59 (8) | 13.56 (4.82–22.30) | 1.38 (0.42–4.53) | 0.4096 |
| No | 49 (5) | 10.20 (1.73–18.68) | 1 | ||
| Longevity at the abattoir (years) | ≤ 5 | 33 (2) | 6.06 (0–14.20) | 0.37 (0.08–1.77) | 0.1675 |
| ≥ 5 | 74 (11) | 14.86 (6.76–22.97) | 1 |