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Volume 15, Number 5—May 2009


A Case–Control Study on the Origin of Atypical Scrapie in Sheep, France

Alexandre FediaevskyComments to Author , Eric Morignat, Christian Ducrot, and Didier Calavas
Author affiliations: Agence Française de Sécurité Sanitaire des Aliments, Lyon, France (A. Fediaevsky, E. Morignat, D. Calavas); Institut National de la Recherche Agronomique, Clermont-Theix, France (A. Fediaevsky, C, Ducrot)

Main Article

Table 7

Adjusted odds ratios of atypical scrapie associated with variables computed from the final model in sheep, France*

VariableAdjusted odds ratio95% CI
No. animals tested increased by 51.221.11–1.35
Sheep dairy farm when vitamin and mineral supplements not given15.063.25–69.73
Sheep dairy farm when vitamin and mineral supplements given2.771.21–6.37
Organic farm0.150.02–1.26
Corn silage0.160.05–0.53
Vitamin and mineral supplements used on sheep dairy farms0.180.03–1.04
Vitamin and mineral supplements not used on sheep dairy farms0.60.32–1.14

*CI, confidence interval.

Main Article