Volume 15, Number 5—May 2009
Research
A Case–Control Study on the Origin of Atypical Scrapie in Sheep, France
Alexandre Fediaevsky
, Eric Morignat, Christian Ducrot, and Didier Calavas
, Eric Morignat, Christian Ducrot, and Didier Calavas
Table 7
Adjusted odds ratios of atypical scrapie associated with variables computed from the final model in sheep, France*
| Variable | Adjusted odds ratio | 95% CI |
|---|---|---|
| No. animals tested increased by 5 | 1.22 | 1.11–1.35 |
| Sheep dairy farm when vitamin and mineral supplements not given | 15.06 | 3.25–69.73 |
| Sheep dairy farm when vitamin and mineral supplements given | 2.77 | 1.21–6.37 |
| Organic farm | 0.15 | 0.02–1.26 |
| Corn silage | 0.16 | 0.05–0.53 |
| Vitamin and mineral supplements used on sheep dairy farms | 0.18 | 0.03–1.04 |
| Vitamin and mineral supplements not used on sheep dairy farms | 0.6 | 0.32–1.14 |
*CI, confidence interval.
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