Table 2: Traumatic brain injuries by activity
Activity% (95%CI)
All agesYouthAdults
Sports49.7
(42.4-57.0)
86.3
(79.9-92.7)
36.6
(27.9-45.4)
Leisure20.1
(14.9-25.4)
8.3
(2.7-13.8)*
24.4
(17.6-31.1)
Work9.0
(5.3-12.7)*
-†12.2
(7.1-17.4)*
Household chores6.1
(3.2-9.0)*
-†7.8
(3.8-11.8)*
Driver/passenger in motor vehicle7.9
(3.3-12.5)*
-†10.0
(3.9-16.1)*

Note: CI = confidence interval.

*Interpret with caution owing to high sampling variability (coefficient of variation between 16.6% and 33.3%).

†Unable to report (coefficient of variation > 33.3%).