{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,9]],"date-time":"2026-01-09T18:08:24Z","timestamp":1767982104680,"version":"3.49.0"},"reference-count":29,"publisher":"BMJ","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Inj Prev"],"published-print":{"date-parts":[[2002,3]]},"abstract":"<jats:p>Objective: To evaluate the effectiveness of state helmet laws in increasing the use of bicycle helmets by children and adolescents under age 16.<\/jats:p>\n               <jats:p>Setting: United States.<\/jats:p>\n               <jats:p>Methods: A cross sectional study of factors associated with the likelihood of helmet use by children and adolescents. Data were derived from a national random digit dial telephone survey of bicycle riders. A multiple logistic regression analysis was used to quantify the independent effect of the state helmet laws on helmet use.<\/jats:p>\n               <jats:p>Results: Helmet use was systematically related to the presence of state helmet laws (odds ratio 2.65; 95% confidence interval (CI) 1.29 to 5.44). The increase in the average probability of helmet use attributable to state helmet laws was 18.4% (95% CI 17.8% to 19.0%).<\/jats:p>\n               <jats:p>Conclusions: State helmet laws significantly increase helmet use by children and play an important part in any comprehensive effort designed to achieve this goal.<\/jats:p>","DOI":"10.1136\/ip.8.1.42","type":"journal-article","created":{"date-parts":[[2002,10,1]],"date-time":"2002-10-01T15:53:59Z","timestamp":1033487639000},"page":"42-46","source":"Crossref","is-referenced-by-count":48,"title":["Effects of state helmet laws on bicycle helmet use by children and adolescents"],"prefix":"10.1136","volume":"8","author":[{"given":"G B","family":"Rodgers","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2002,3,1]]},"reference":[{"key":"2025092606284816000_8.1.42.1","unstructured":"US Consumer Product Safety Commission. 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