Table 3

 Prevalence of helmet use (%) in 2001, 2002 and 2003 by education and proportion of days skied/snowboarded

Predictor200120022003
Education
    High school graduate or less6.918.520.7
    Some college education13.620.320.4
    College graduate12.520.924.7
Proportion of days skied or snowboarded
    1st quartile1.95.67.1
    2nd quartile5.411.315.5
    3rd quartile14.623.131.6
    4th quartile27.638.438.4