Table 3.

Adjusted incidence rate ratios (IRRs) of factors associated with falls that differed by jockey and track-work riders

Study factor	Jockey	Track-work rider
	IRR (95% CI)†	IRR (95% CI)†
Body mass (kg)	0.82 (0.81 to 0.83)***	1.05 (1.02 to 1.07)***
Height (cm)	0.92 (0.89 to 0.96)***	1.05 (0.92 to 1.19)
Muscular power
Peak power (W/kg)	1.08 (1.04 to 1.13)***	0.95 (0.94 to 0.96)***

Interactions by licence type: body mass (p<0.001), height (p<0.001), peak power (p<0.001).

***p<0.001.

^†Adjusted for age and sex.