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Effect of a State Law on Reported Bicycle Helmet Ownership and Use
Richard A. Schieber, MD, MPH;
Marcie-jo Kresnow, MS;
Jeffrey J. Sacks, MD, MPH;
Edwin E. Pledger, MPA;
Joann M. O'Neil;
Kathleen E. Toomey, MD, MPH
Arch Pediatr Adolesc Med. 1996;150(7):707-712.
Abstract
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Objective
To evaluate the effect of a state law on reported bicycle helmet ownership and use.
Design
Multistage cluster random-digit-dialing telephone survey.
Setting
Georgia, June through November 1993.
Participants
Adults who reported the behavior of bicyclists 4 through 15 years old.
Intervention
State law mandating helmet use after July 1, 1993, for all bicyclists aged younger than 16 years.
Main Outcome Measures
Bicycle helmet ownership and use.
Results
Reported helmet ownership increased from 39% before the law took effect to 57% afterward (+46%, P=.06). Reported use increased from 33% before to 52% afterward (+58%, P<.05). About 7% of riders changed from "never-wearing" to "always-wearing" behavior. After the law took effect, in those households in which the law was known, 69% of riders owned and 64% used a helmet. By comparison, in those households in which the law was not known, only 30% owned and 25% used a helmet (P<.01). Reported ownership and use were 93% concordant, inversely related to rider age, and directly related to household income. Multivariable analysis indicated that race was an effect modifier of reported helmet ownership and use. In black riders, knowledge of the law appeared to be highly associated with both reported helmet ownership and use but was not significant in white riders. In white riders, though, age and income were significantly associated with reported helmet ownership and use.
Conclusions
This law appeared important in increasing reported helmet ownership and use, particularly in black riders. Since knowledge of the law was associated with increased ownership and use, additional publicity about the law might further increase helmet use. Because most riders who owned helmets used them, giveaway programs targeting areas of low ownership may also increase use.
Arch Pediatr Adolesc Med. 1996;150:707-712
Author Affiliations
From the Division of Unintentional Injury Prevention (Drs Schieber and Sacks) and Office of Statistics, Programming, and Graphics (Mss Kresnow and O'Neil), National Center for Injury Prevention and Control and Epidemic Intelligence Service, Epidemiology Program Office, Centers for Disease Control and Prevention, US Public Health Service, US Department of Health and Human Services, Atlanta, Ga; and Epidemiology and Prevention Branch, Division of Public Health, Georgia Department of Human Resources, Atlanta (Mr Pledger and Dr Toomey).
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