Research Article
Tuberculosis in Goats and Sheep in Afar Pastoral Region of Ethiopia and Isolation of Mycobacterium tuberculosis from Goat
Table 2
Multivariable logistic regression analysis of tuberculin reactors with various host-related risk factors at ≥2 mm cut-off point.
| Variables | Number of animals examined | Number (%) of positive in CIDT | Crude odds ratio (95% CI) | Adjusted odds ratio (95% CI) |
| Districts | | | | | Chifra | 396 | 20 (5.05) | 1 | 1 | Dubti | 237 | 22 (9.28) | 1.92 (1.03–3.61)* | — | Afambo | 117 | 5 (4.27) | 0.84 (0.31–2.29) | — | Amibara | 1481 | 39 (2.63) | 0.51 (0.29–0.88)* | 0.17 (0.05–0.55)* | Species | | | | | Ovine | 347 | 5 (1.44) | 1 | 1 | Caprine | 1884 | 81 (4.3) | 3.07 (1.24–7.64)* | 2.05 (0.42–9.94) | Herd size | | | | | ≤25 | 617 | 32 (5.19) | 1 | 1 | | 851 | 32 (3.76) | 0.71 (0.43–1.18) | 1.84 (0.52–6.45) | >50 | 763 | 22 (2.88) | 0.54 (0.31–0.94)* | 0.44 (0.14–1.34) | Sex | | | | | Male | 206 | 11 (5.34) | 1 | 1 | Female | 2025 | 75 (3.70) | 0.68 (0.36–1.31) | 0.25 (0.04–1.74) | Age | | | | | ≤2 | 594 | 18 (3.03) | 1 | 1 | | 779 | 36 (4.62) | 1.55 (0.87–2.76) | 2.16 (0.47–9.89) | | 858 | 32 (3.73) | 1.24 (0.69–2.23) | 13.79 (2.22–85.55)* | BCS | | | | | Poor | 376 | 13 (3.46) | 1 | 1 | Good | 1116 | 48 (4.30) | 1.25 (0.67–2.34) | 1.90 (0.61–5.88) | Fat | 739 | 25 (3.38) | 0.98 (0.49–1.93) | 0.75 (0.17–3.28) | Production system | | | | | Pastoral | 2051 | 80 (3.90) | 1 | 1 | Agropastoral | 180 | 6 (3.33) | 1.18 (0.51–2.74) | — | Lactation status | | | | | Kid/lamb | 57 | 2 (3.51) | 1 | 1 | Lactating | 760 | 19 (2.50) | 1.05 (0.23–4.77) | 0.50(0.06–4.08) | Nonlactating | 354 | 13 (3.67) | 0.71 (0.16–3.11) | 0.82(0.12–5.79) | Reproductive status | | | | | Nonpregnant | 857 | 19 (2.22) | 1 | 1 | Pregnant | 314 | 15 (4.78) | 2.21 (1.11–4.41)* | 3.43(0.72–16.33) | Parity number | | | | | <2 | 260 | 10 (3.85) | 1 | 1 | | 304 | 13 (4.28) | 1.12 (0.48–2.59) | 0.38 (0.09–1.65) | | 324 | 5 (1.54) | 0.39 (0.13–1.16) | 0.05 (0.01–0.31)* |
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CI: confidence interval, BCS: body condition scoring, *statistically significant.
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