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 5
Univariate analyses of exposure to toxic product variables during the specified period and conditional to C0 for atypical scrapie in sheep, France*
| Variable | Controls | Cases | Odds ratio | p value |
|---|---|---|---|---|
| Use of mineral drugs during C0–C2006 | ||||
| No | 99 | 38 | 1.2 | 0.50 |
| Yes | 126 | 57 | ||
| Pesticides containing neurotoxic components used on crops during C0–C2006 | ||||
| No | 155 | 51 | 1.9 | 0.009 |
| Yes | 70 | 44 | ||
| Insecticides containing neurotoxic components used on premises during C0–C2006 | ||||
| No | 169 | 55 | 2.2 | 0.002 |
| Yes | 56 | 40 | ||
| Antiparasitic treatments containing neurotoxic components during C0–C2006 | ||||
| No | 100 | 47 | 0.8 | 0.42 |
| Yes | 125 | 48 | ||
*C0, birth cohort assuming that in each flock all animals born during the same birth campaign (defined from July 1 of year n – 1 to June 30 of year n) shared the same exposure; C2006, birth campaign 2006.
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