Table 1

 Multivariate logistic regression model predicting prevalence of helmet use (1 = yes; 0 = no) in 2003

PredictorOdds ratio (95% CI)
Age1.02 (1.01 to 1.03)
Equipment (snowboard vs skis)3.01 (2.16 to 4.19)
Gender (male vs female)1.50 (1.11 to 2.02)
Education
    Some college vs high school1.00 (0.59 to 1.69)
    College vs high school1.77 (1.11 to 2.80)
Days skied/snowboarded
    4th quartile vs 1st quartile9.42 (5.92 to 15.00)
    3rd quartile vs 1st quartile6.72 (4.20 to 10.74)
    2nd quartile vs 1st quartile3.29 (2.01 to 5.38)