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  • Impacts of helmet law on the changes in potential years of life lost due to traffic injury: A multiple-province evaluation in Vietnam

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    Author(s)
    Phung, Dung
    Nguyen, Ha Trong
    Chu, Cordia
    Sadler, Ross
    Luong, Anh Mai
    Nguyen, Huyen Thi
    Pham, Tuan Cong
    Huang, Cunrui
    Griffith University Author(s)
    Phung, Dung T.
    Chu, Cordia M.
    Year published
    2020
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    Abstract
    Introduction: This study aimed to evaluate the impact of the helmet law on the changes in potential years of life lost (PYLL) due to traffic mortality and to examine modification effects of socioeconomic factors on the impacts in Vietnam. Methods: We applied an interrupted time series design using the Bayesian framework to estimate the impact of the law at the provincial level. Then, we used random effects meta-analysis to estimate the impact of the law at the country level and to examine the modification effects of socioeconomic factors. Results: The results indicate that the impacts varied among the provinces. These impacts ...
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    Introduction: This study aimed to evaluate the impact of the helmet law on the changes in potential years of life lost (PYLL) due to traffic mortality and to examine modification effects of socioeconomic factors on the impacts in Vietnam. Methods: We applied an interrupted time series design using the Bayesian framework to estimate the impact of the law at the provincial level. Then, we used random effects meta-analysis to estimate the impact of the law at the country level and to examine the modification effects of socioeconomic factors. Results: The results indicate that the impacts varied among the provinces. These impacts could be classified by four main groups comprising positive impact, and positive impact without sustainability, possible positive impact, negative or inconsistent impact. For the country-level impact, the results reveal a significantly consistent change in monthly PYLLs at the level of 18 per 100 000 persons, and the post-trend was stable without significant change. The results of meta-regression show that 1 unit increase in the population density (persons/km 2 ), migration rate (%) and income (×1000 dong) are non-significantly associated with increases of PYLLs at 1.3, 27 and 27 per 100 000 person-months, respectively, whereas 1% increase in literacy associated with a decrease of PYLL at 44 per 100 000 person-months. Discussion: Further studies should be warranted to provide a comprehensive evaluation of the law implementation, including its acceptability, adoption, appropriateness, feasibility, cost-effectiveness and sustainability.
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    Journal Title
    Injury Prevention
    DOI
    https://doi.org/10.1136/injuryprev-2018-043088
    Copyright Statement
    © Author(s) (or their employer(s)) 2019. No commercial re-use. See rights and permissions. Published by BMJ.
    Note
    This publication has been entered into Griffith Research Online as an Advanced Online Version.
    Subject
    Sports science and exercise
    Health services and systems
    Public health
    Psychology
    Publication URI
    http://hdl.handle.net/10072/386049
    Collection
    • Journal articles

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