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Table 1 Univariate analysis for the association between potential risk factors and AHSV infection among horses in Khartoum state, Sudan, using chi-square test

From: Sero-epidemioloical survey on African horse sickness virus among horses in Khartoum State, Central Sudan

Risk factors

Animals tested

Animals affected (%)

df

χ2

p-value

Locality

  

3

6.7

0.079

 East Nile

50

47(94%)

   

 Bahry

108

88(81.5%)

   

 Omdurman

35

33(94%)

   

 khartoum

127

107(84%)

   

Age

  

1

0.29

0.58

 young

89

78 (87.6%)

   

 Old

231

197(85.3%)

   

Sex

  

1

0.70

0.48

 Female

50

41(82%)

   

 Male

270

234(86.7%)

   

Breed

  

2

7

0.031

 Arabi

14

12(85.7%)

   

 Cross

30

21(70%)

   

 Local

276

242(87.7%)

   

Body condition

  

1

4.6

0.03

 Fair

294

249(84.7%)

   

 Thin

26

26(100%)

   

Presence of insects

  

1

1.94

0.16

 No

33

31(93.9%)

   

 Yes

287

244(85%)

   

Control measures

  

1

0.49

0.48

 No

193

168(87%)

   

 Yes

127

107(84.3%)

   

Activity

  

2

6.01

0.049

 Chaser

73

60(82.2%)

   

 Cart horse

108

88(81.5%)

   

 Police horse

139

127(91.4%)