Factors (Variables) No of animals OR
Examined Positive for TB (%) Crude (95% CI) Adjusted (95% CI)
Pastoralist associations      
Gerirona Wekello* 89 2 (2.25%) 1 1
Anderkellona Kelayitu 187 9 (4.81%) 2.2 (0.47-10.40) 4.9 (0.71-33.66)
Jarana Kontolla 64 5 (7.81%) 3.69 (0.69-19.60) 1.92 (0.34-10.92)
Semsemina Addoo 57 5 (8.77%) 4.18 (0.78-22.30) 7.54 (0.74-76.84)
Species      
Sheep* 77 1 (1.30%) 1 1
Goat 320 20 (6.25%) 5.07 (0.67-38.40) 9.23 (1.13-75.11)
      Flock size      
X<75* 206 11 (5.34%) 1 1
X ≥ 75 191 10 (5.24%) 0.79 (0.29-2.16) 2.41 (0.53-11)
Sex      
Male* 54 3 (5.56%) 1 1
Female 343 18 (5.25%) 0.94 (0.27-3.31) 0.64 (0.16-2.43)
Age (years)      
X ≤ 2* 126 5 (3.97%) 1 1
2<X ≤ 5 171 13 (7.60%) 1.2 (0.69-5.74) 1.74 (0.58-5.21)
X>5 100 3 (3.00%) 0.75 (0.17-3.21) 0.68 (0.15-3.16)
Body condition scores      
Poor* 188 12 (6.38%) 1 1
Medium 122 8 (6.56%) 1.03 (0.41-2.60) 1.04 (0.40-2.71)
Good 87 1 (1.15%) 0.17 (0.02-1.33) 0.18 (0.02-1.5)
Lactating status      
Lamb/kid* 48 2 (4.17%) 1  
Lactating 198 12 (6.06%) 1.48 (0.30- 6.86)  
Non lactating 97 4 (4.12%) 0.99 (0.17-5.60)  
Reproductive status      
Lamb/kid* 31 1 (3.23%) 1  
Pregnant 111 5 (4.50%) 1.42 (0.16-12.58)  
Non pregnant 201 12 (5.97%) 1.9 (0.24-15.19)  
Parity number      
X ≤ 1* 107 7 (6.54%) 1  
1<X ≤ 3 102 6 (5.88%) 0.89 (0.29-2.75)  
X>3 134 5 (3.73%) 0.55 (0.17-1.80)  
*Reference category is indicated as 1 in crude and adjusted odds ratios.
Table 4: Multivariable logistic regression analysis of tuberculin reactors with various host-related risk factors at 2mm cut-off point in small ruminants.