Dannenberg - Bicycle helmet laws and educational campaigns Flashcards
What type of experiment was this study?
A natural experiment
What three counties were the participants from?
Howard county
Montgomery county
Baltimore county
What age groups were the participants?
Aged 9-10, 12-13, and 14-15 years old.
What was different about Montgomery county?
There was already a campaign to promote bicycle safety.
Why was this study conducted?
A law passed in Howard county, Maryland, USA requiring children under 16 years riding bicycles to wear approved safety helmet.
How many children completed the questionnaires?
7322 children from 47 schools
Who helped them fill out their questionnaires?
Their parents, which means that they gave parental consent
What was the resulting response rate?
Between 41% and 53% across the three age groups and three counties.
What use increase in helmets was there in each county?
Howard county: 11.4% - 37.5%
Montgomery county: 8.4% - 12.6%
Baltimore county: 6.7% - 11.1%
How many participants in Howard county were aware of the helmet law?
87%
How many participants who were aware of the helmet law wore a helmet on their last cycle ride?
38%
How many participants were not aware of the helmet law in Howard county?
4%
How many participants who were not aware of the helmet law wore a helmet on their last cycle ride?
14%
How effective are educational campaigns?
Educational campaigns alone are not effective but legislation is.
