Table 2.

Coefficients from final adjusted model of risk factors of any injury using the full sample.

	Adjusted OR (95% CI)	Adjusted p-value
Dog age (per 1 year older)	1.17 (1.14, 1.20)	<0.001
Height & weight together		<0.001
Dog height (per 4 inches taller)	0.83 (0.73, 0.95)
Dog weight (per 10 pounds heavier)	1.17 (1.08, 1.27)
Breed		<0.001
Border collie	1.97 (1.64, 2.37)
Mixed breed	1.03 (0.83, 1.28)
Shetland sheepdog	1.18 (0.89, 1.56)
Australian shephard	0.98 (0.75, 1.29)
Other	Reference
Age brought dog home		0.014
<8 weeks	0.99 (0.83, 1.17)
8–12 weeks	Reference
13–15 weeks	1.01 (0.75, 1.37)
4–6 months	0.98 (0.73, 1.32)
7–12 months	0.97 (0.72, 1.30)
>12 months	0.62 (0.48, 0.80)
Agility main sport focus		0.048
Yes	Reference
Mostly	1.07 (0.90, 1.27)
No	0.76 (0.59, 0.98)
Growth plate x-rays		0.025
Not done	Reference
Done at least once	1.22 (1.03, 1.46)
Handler current age		<0.001
18–24	Reference
25–34	1.30 (0.92, 1.86)
35–44	1.27 (0.89, 1.82)
45–54	1.08 (0.76, 1.53)
55–64	0.92 (0.65, 1.30)
65+	0.59 (0.41, 0.86)
Handler medical training/experience		0.005
None of these	Reference
Veterinarian	0.53 (0.36, 0.77)
Licensed vet tech	0.68 (0.44, 1.05)
Veterinary assistant	1.19 (0.77, 1.82)
Human health care professional	0.90 (0.74, 1.09)
Handler agility experience		0.035
<3 years	1.12 (0.84, 1.51)
3–5 years	1.20 (0.96, 1.50)
6–10 years	1.32 (1.09, 1.59)
11–15 years	1.27 (1.04, 1.56)
>15 years	Reference
Handler competed at national level		0.007
No	Reference
Yes	1.23 (1.06, 1.43)