ArticleBMJ open2019
Life-threatening alcohol-related traffic crashes in adverse weather: a double-matched case-control analysis from Canada.
Article in BMJ open, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
2 citing papers in PubMed.
- Road safety threats and occupational health risk associated with psychoactive substance use and dependence risk among commercial drivers: WHO ASSIST evidence from Ghana.BMC public health · 2026Article
- An Actuarial Pricing Method for Air Quality Index Options.International journal of environmental research and public health · 2019Article
Corrections and comments
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Authors and funding
2 authors.
Funding
Abstract
importanceDrunk driving is a major cause of death in North America, yet physicians rarely counsel patients on the risks of drinking and driving.
objectiveTo test whether the risks of a life-threatening alcohol-related traffic crash were further accentuated by adverse weather.
designDouble matched case-control analysis of hospitalised patients.
settingCanada's largest trauma centre between 1 January 1995 and 1 January 2015.
participantsPatients hospitalised due to a life-threatening alcohol-related traffic crash. EXPOSURE: Relative risk of a crash associated with adverse weather estimated by evaluating the weather at the place and time of the crash (cases) compared with the weather at the same place and time a week earlier and a week later (controls).
resultsA total of 2088 patients were included, of whom the majority were drivers injured at night. Adverse weather prevailed among 312 alcohol-related crashes and was significantly more frequent compared with control circumstances. The relative risk of a life-threatening alcohol-related traffic crash was 19% higher during adverse weather compared with normal weather (95% CI: 5 to 35, p=0.006). The absolute increase in risk amounted to 43 additional crashes, extended to diverse groups of patients, applied during night-time and daytime, contributed to about 793 additional patient-days in hospital and was distinct from the risks for drivers who were negative for alcohol.
conclusionsAdverse weather was associated with an increased risk of a life-threatening alcohol-related traffic crash. An awareness of this risk might inform warnings to patients about traffic safety and counselling alternatives to drinking and driving.
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