Table 2.

Statistical linear and logistic regression models used in this study

Outcome (response) variables	Predictor variables	Interactions
Postoperative complication rate	Type of trauma Rider age and sex Rider experience Wearing of protective equipment Whether or not the horse was shod	Type of trauma and horse shoeing status, type of trauma and wearing of safety equipment
Operating time	Type of trauma Rider age and sex Rider experience Wearing of protective equipment Whether or not the horse was shod
Length of stay	Type of trauma Rider age and sex Rider experience Wearing of protective equipment Whether or not the horse was shod
Fracture site	Type of trauma Rider age and sex Rider experience Wearing of protective equipment Whether or not the horse was shod