Table 2

Parent reported helmet ownership and use among preschool children; values are number (%)

Own helmetAlways wear
CI = confidence interval.
Baseline
    Intervention184/417 (44)89/349 (26)
    Control74/137 (54)47/132 (36)
Follow up
    Intervention364/378 (96)225/389 (58)
    Control85/135 (63)51/139 (37)
Relative risk (95% CI)1.53 (1.34 to 1.79)1.58 (1.25 to 1.99)
Risk difference (95% CI)33.3% (25.0 to 41.7)21.2% (11.8 to 30.6)