Figure 2

Generalised additive models describing the functional form of the relationship between severity of crib-biting/windsucking behaviour and hours stabled in the Autumn and the log odds of having a history of colic in the previous 12 months Use of generalised additive models to describe the functional form of the relationship between (a) severity of cribbiting/windsucking behaviour and (b) hours stabled in the autumn months with the outcome (log odds of having suffered from colic in the previous 12 months). The plots show the fitted curves with 95% confidence intervals (dashed lines) and the rug plots along the x axis represent the number of data points.