From: Observed management practices in relation to the risk of infection with paratuberculosis and to the spread of Mycobacterium avium subsp. paratuberculosisin Swiss dairy and beef herds
Variables
% cases/% controls
OR1
95% CI2
p-value
All herds
Animal purchase3
53/16
7.25
1.86-28.34
0.004
Dairy herds
60/23
6.34
1.18-34.13
0.031
Beef herds
No significant factors