Description of the data source, numerator, denominator, survey questions, and other relevant details about the national estimate.
NOPUS uses observational data collected at intersections, highway ramps, and parking lots. Four observers (each responsible for a different seat in cars, two observers for motorcycles) report occupant helmet use.
Data by race and age are not reported because race and age are subjectively assessed by roadside observers and are, therefore, considered unreliable.
Any change to the objective text, baseline, target, target-setting method or data source since the Healthy People 2020 launch.
In 2012, the target was revised from 73.7 to 74 due to the available precision of the baseline value. The baseline value is 67, not 67.0.
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