Table 2 Descriptive statistics for significant risk factors for high endoparasitic burden (EPG > 200) and odds-ratios (95% confidence limits) from multivariate analysis (n = 903 horses).
Risk factors (levels) | No. of observ. | Bivariate analysis | Multivariate analysis | ||
|---|---|---|---|---|---|
Prev. (%) | p-value | Odds-ratio | p-value | ||
Herd type | 0.001 | 0.0001 | |||
Stud farm | 539 | 44 | 0.57 (0.44–0.75) | ||
Riding school | 241 | 48 | 1.65 (1.20–2.27) | ||
Pension | 188 | 31 | 0.47 (0.35–0.66) | ||
Other type | 87 | 61 | |||
Age | 0.001 | 0.0001 | |||
Foals | 92 | 35 | 0.99 (0.76–1.28) | ||
Youngsters | 211 | 73 | 4.37 (3.59–5.31) | ||
Adults | 736 | 38 | |||
The veterinarian gives recommendations regarding pasture hygienic conditions | 0.001 | 0.0003 | |||
Yes | 473 | 37 | 1.80 (1.53–2.12) | ||
No | 582 | 49 | |||
Anthelmintic treatment of visiting horses | 0.001 | 0.0008 | |||
No | 283 | 35 | 1.91 (1.57–2.33) | ||
Yes | 772 | 47 | |||
Pasture rotation used | 0.025 | 0.0028 | |||
Yes | 754 | 45 | 1.76 (1.45–2.13) | ||
No | 200 | 37 | |||
Adviser is used in the planning of the endoparasite control | 0.019 | 0.0062 | |||
Yes | 538 | 47 | 1.54 (1.31–1.80) | ||
No | 517 | 40 | |||