Table 6.
Estimated risk ratios and significance tests for the lameness after flexion test and RS variables in the Prentice and Gloeckler's regression model.
| Explanatory variable | Dependent variables | |
| RR culling | RR CHLL | |
| lameness after flexion test | 1.647 | 4.523 |
| Significance | χ2 = 5.87* | χ2 = 22.69*** |
| df = 1 | df = 1 | |
| R2 = 0.34 | R2 = 0.17 | |
| RS | 2.103 | 5.493 |
| Significance | χ2 = 13.27*** | χ2 = 27.73*** |
| df = 1 | df = 1 | |
| R2 = 0.34 | R2 = 0.17 | |
p < 0.05, ** p < 0.01. *** p < 0.001
RR: risk ratio
RS: radiographic signs of bone spavin
CHLL: culling because of hind limb lameness