Volume 11, Number 4—April 2005
Research
Reemergence of Canine Echinococcus granulosus Infection, Wales
Table 2
Multivariate logistic regression model of possible risk factors for a positive Echinococcus coproantigen-test result in farm dogs (n = 1,164)
| Risk factor | p value | Regression coefficient | OR | 95% CI |
|---|---|---|---|---|
| Location of dog (compared to chained dogs) | ||||
| Free roaming | <0.0001 | 1.07 | 2.91 | 1.77–4.8 |
| Other | 0.411 | 0.53 | 1.7 | 0.48–5.91 |
| Frequency of anthelmintic treatment (compared to <4 months) | ||||
| 4–6 months | 0.002 | 0.84 | 2.31 | 1.35–3.95 |
| >6 months | 0.004 | 1.15 | 3.16 | 1.46–6.85 |
| Constant | <0.0001 | –2.52 |
*Sampled July–November 2002, Powys and Gwent Counties, Wales. OR, odds ratio; CI, confidence interval.
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