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Journal Article

Citation

Rudisill TM, Zhu M, Chu H. BMJ Open 2019; 9(2): e023456.

Affiliation

Division of Biostatistics, University of Minnesota, Minneapolis, Minnesota, USA.

Copyright

(Copyright © 2019, BMJ Publishing Group)

DOI

10.1136/bmjopen-2018-023456

PMID

30782881

Abstract

OBJECTIVES: Cellphone use behaviours can vary demographically in the USA. This study examined whether legislation restricting cellphone use while driving was associated with lower self-reported hand-held cellphone conversations or texting behaviours among adult drivers of different ages (19-24, 25-39, 40-59,≥60 years), sex, race/ethnicity (white non-Hispanic, black non-Hispanic, Hispanic, Other) or rurality (urban, rural).

DESIGN: Cross-sectional study. SETTING: USA. PARTICIPANTS: Individuals ≥19 years of age who indicated they were a current driver and participated in the 2011-2014 Traffic Safety Culture Index Surveys (n=9706). PRIMARY OUTCOME: The exposure was the presence of a hand-held calling or texting ban applicable to all drivers (ie, universal) at time of survey. Modified Poisson regression with robust SE was used to estimate the risk of engaging in these self-reported behaviours.

RESULTS: In fully adjusted models, universal texting bans were not associated with lower texting behaviours (adjusted risk ratio [aRR]=0.92; 95% CI 0.84, 1.01). In stratified, fully adjusted models, men and those of other racial/ethnic origin were 13% and 33% less likely, respectively (aRR=0.87; 95% CI 0.77, 0.98; aRR=0.67; 95% CI 0.46, 0.97), to engage in texting behaviours if a universal texting ban was effective in their state. Conversely, universal hand-held calling bans were associated with lower self-reported hand-held cellphone conversations across every sub-group. In fully adjusted models, the presence of a hand-held calling ban was associated with 40% lower (aRR=0.60, 95% CI 0.54, 0.67) self-reported hand-held cellphone conversations while driving.

CONCLUSIONS: Universal hand-held calling bans were associated with lower self-reported cellphone conversations for adult drivers. More interventional work targeting adult drivers may be needed to reduce texting while driving.

© Author(s) (or their employer(s)) 2019. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.


Language: en

Keywords

automobile driving; cellphones; epidemiology; legislation

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