Table 2.

Best-fit models for clinical score, and cartilage and bone destruction predicted by different scoring methods

Dependent variable	Best-fit model	Adjusted R2	Significance
Clinical score	Composite score of knee histology	0.464	< 0.001
Cartilage destruction	Larsen score	0.525	< 0.001
	Larsen score + micro-CT calcaneus score	0.667	< 0.001
	Larsen score + micro-CT calcaneus score + clinical score	0.704	< 0.001
Bone destruction	Micro-CT calcaneus score	0.605	< 0.001
	Micro-CT calcaneus score + Larsen score	0.713	< 0.001

Best-fit models for clinical score, and cartilage and bone destruction in the hind paw as proposed by linear regression analysis with scoring methods and treatment group as independent variables. R² indicates the squared correlation between the observed values of the dependent variable and the predicted values based on the regression model. Adjusted R² is a modification of R² that adjusts for the number of covariates in the regression model.