Skip to main content

Table 1 Univariate analysis for the association between BTV infection and the potential risk factors

From: Prevalence of bluetongue virus infection and associated risk factors among cattle in North Kordufan State, Western Sudan

Risk factors Animals tested Animals affected (%) df χ2 p-value
Locality    5 4.181 0.524
Abuzabad 57 14(24.6%)    
Um Ruwaba 58 9(15.5%)    
Bara 36 7(19.4%)    
Shiekan 60 9(15%)    
Ennuhud 40 11(27.5%)    
Elkhuwaye 48 8(16.7%)    
Age    1 13.03 0.001
Young 119 11(9.2%)    
Old 180 47(26.1%)    
Sex    1 1.99 0.159
female 262 54(20.6%)    
male 54 4(10.8%)    
Breed    1 0.399 0.368
Indigenous 272 54(19.9%)    
Cross 27 4(14.8%)    
Body condition    1 5.491 0.012
Bad 234 52(22.2%)    
Good 65 6(9.2%)    
Animal source    2 0.165 0.921
-Raised on farm 213 41(19.2%)    
Purchased from other farm 8 2(2.5%)    
purchased from local market 78 15(19.2%)    
Grazing system    2 1.097 0.578
Stationary 73 15(20.5%)    
Nomadic 50 12(24%)    
Semi nomadic 176 31(17.6%)    
Herd size    2 1.321 0.517
Small 66 16(24.2%)    
Medium 98 17(17.3%)    
Large 135 25(18.5%)    
Vector control    1 18.506 0.001
No 167 47(28.1%)    
Yes 132 11(8.3%)    
Other animal    1 0.189 0.387
No 152 28(18.4%)    
Yes 147 30(20.4%)    
Farm yard    1 0.259 0.358
Outside 115 24(20.9%)    
Indoor 184 34(18.5%)    
Milk production    2 0.680 0.712
No 159 33(20.8%)    
Low 131 24(18.3%)    
High 9 1(11.1%)