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Table 4 Risk factors for being seropositive for Border Disease with corresponding number and proportion of positive samples (apparent seroprevalence), number of negative samples and associated Odds-ratio (with 95% CI)

From: Seroprevalence of border disease virus and other pestiviruses in sheep in Algeria and associated risk factors

  Positive samples (%) Negative samples p value OR 95% CI
Climate
 arid 312 (65.5%) 164 0.0001 4.04
1
2.55–6.39
 mediterranean 32 (32.0%) 68
Landscape
 mountain 31 (44.3%) 39 0.005 0.49
1
0.29–0.80
 plateau 313 (61.9%) 193
Flock management
 sedentary 126 (52.5%) 114 0.0001 0.59
1
0.42–0.83
 transhumant 218 (64.9%) 118
Herd Composition
 mixed (goat or cattle)a 243 (59.1%) 168 0.644a 0.92a
1
0.63-1.33
 sheep only 101 (61.2%) 64
 sheep with cattlea 206 (60.6%) 134 0.611a 1.09a
1
0.78-1.53
 no cattle 138 (58.5%) 98
 sheep with goat 143 (52.8%) 128 0.001 0.58
1
0.41–0.81
 no goat 201 (65.9%) 104
Clinical diseases
 yes 126 (59.0%) 108 0.017 0.66
1
0.47–0.93
 no 218 (63.7%) 124
  1. aNon significant