Table 2.

Factors associated with bike helmet use

Variable	Helmet use n/N* (%)	OR (unadjusted)	95% CI	OR (adjusted)**	95% CI
Overall	1109/2200 (50.4)
Gender
Male	696/1433 (48.6)	Ref	Ref	Ref	Ref
Female	413/767 (53.8)	1.24	1.03–1.47	1.28	1.05–1.54
Age group
Adult	774/1578 (49.0)	Ref	Ref	Ref	Ref
Child	66/80 (82.5)	4.85	2.78–9.09	3.92	2.17–7.08
Young adult	157/342 (45.9)	0.88	0.70–1.11	0.65	0.51–0.84
Senior	112/200 (56.0)	1.32	0.98–1.78	1.09	0.80–1.49
Ethnicity
Caucasian	1046/1955 (53.5)	Ref	Ref	Ref	Ref
Visible minority	63/245 (25.7)	0.30	0.22–0.40	0.38	0.28–0.53
Type of bicycle
Commuter bike	899/1671 (53.8)	Ref	Ref	Ref	Ref
Racing bike	149/185 (80.5)	3.54	2.46–5.23	3.84	2.62–5.62
Bike sharing	61/344 (17.7)	0.19	0.14–0.25	0.21	0.15–0.28

^*Excluded N = 72 from total due to incomplete data (n = 50) and skaters (n = 22). **Adjusts for gender, age, ethnicity, and bike type