Does anyone know if there's been a study to look at injury rates on synthetic surfaces broken down by where the horses have been primarily racing or training prior to the injury? It's one thing to talk about x injuries per y starts, but I would be curious to see if there's a statistically significant difference between injury rates per y starts broken down by horses which have been racing and training over that surface vs. horses which had been racing and training over other surfaces, such natural dirt, turf or other synthetic surfaces.
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