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Effectiveness of a law to reduce alcohol-impaired driving in Japan.

Authors
Nagata-T; Setoguchi-S; Hemenway-D; Perry-MJ
Source
Inj Prev 2008 Feb; 14(1):19-23
NIOSHTIC No.
20033887
Abstract
OBJECTIVE: To estimate the effect of a new road traffic law against alcohol-impaired driving in Japan. METHODS: Japan passed a new road traffic law in June 2002 intended to reduce alcohol-impaired driving by decreasing the permissible blood alcohol level and by increasing penalties. Using data collected from police reports, the number of traffic fatalities and injuries were analyzed by time series. RESULTS: Simple comparisons of the average of all severe traffic injuries, traffic fatalities, alcohol-impaired traffic injuries, alcohol-impaired severe traffic injuries, and alcohol-impaired traffic fatalities per billion kilometers driven showed reductions after enactment of the new road traffic law in June 2002. The rate of alcohol-related traffic fatalities per billion kilometers driven decreased by 38% in the post-law period. In segmented regression analyses with adjustment for baseline trends, seasonality, and autocorrelation, all traffic injuries, severe traffic injuries, alcohol-impaired traffic injuries, alcohol-impaired severe traffic injuries, and alcohol-impaired traffic fatalities per billion kilometers driven declined significantly from baseline after the new traffic law. CONCLUSION: Large, immediate public health benefits resulted from the new road traffic law in Japan.
Keywords
Drivers; Drug-abuse; Alcoholic-beverages; Substance-abuse; Risk-factors; Risk-analysis; Injury-prevention
Contact
Takemi Program, Department of International Health, Harvard School of Public Health, 665 Huntington Avenue, Boston, MA 02115
Publication Date
20080201
Document Type
Journal Article
Email Address
nagata.takashi@gmail.com
Funding Type
Grant
Fiscal Year
2008
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-T42-OH-008416
Issue of Publication
1
ISSN
1353-8047
Source Name
Injury Prevention
State
MA
Performing Organization
Harvard School of Public Health
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