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Table 2 Involvement of US beef cow-calf producers in Johne’s disease testing, enrollment in a control program and maintenance of a closed herd during 2010-2011

From: Perceptions of veterinarians and producers concerning Johne’s disease prevalence and control in US beef cow-calf operations

Variable   Odds ratio 95% CI Pa
Tested herd for MAP Yes No    
Commercial cow-calf Yes 85 7 0.19 0.02 to 1.58 0.099
No 64 1
Seedstock Yes 86 3 2.28 0.52 to 9.87 0.292
No 63 5
Closed herds Yes 52 4 0.59 0.14 to 2.49 0.499
No 87 4
With clinical cow Yes 23 4 0.25 0.05 to 1.20 0.101
  No 69 3    
Enrolled in a control program Yes No    
Commercial cow-calf Yes 56 37 0.10 0.03 to 0.30 < 0.001
No 61 4
Seedstock Yes 76 13 3.99 1.87 to 8.53 < 0.001
No 41 28
Closed herds Yes 42 14 1.12 0.52 to 2.39 0.780
No 67 25
With clinical cow Yes 14 13 0.35 0.14 to 0.89 0.031
  No 55 18    
Maintained a closed herd Yes No    
Commercial cow-calf Yes 37 50 1.68 0.84 to 3.33 0.145
No 19 43
Seedstock Yes 31 54 0.90 0.46 to 1.75 0.749
No 25 39
With clinical cow Yes 8 15 0.98 0.36 to 2.64 0.975
  No 24 44    
  1. aMid-point exact P values.