Odds of culpability associated with use of impairing drugs in injured drivers in Victoria, Australia

•Culpability analysis was conducted on 5000 injured drivers in whom drug testing was conducted.•Alcohol gave large increases in the odds of culpability that was concentration-dependent.•Methylamphetamine also showed a large increase in the odds of culpability.•THC gave a modest increase in the odds...

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Vydané v:Accident analysis and prevention Ročník 135; s. 105389
Hlavní autori: Drummer, Olaf H., Gerostamoulos, Dimitri, Di Rago, Matthew, Woodford, Noel W., Morris, Carla, Frederiksen, Tania, Jachno, Kim, Wolfe, Rory
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: England Elsevier Ltd 01.02.2020
Predmet:
Accidents, Traffic - statistics & numerical data
Adolescent
Adult
Benzodiazepines - blood
Blood Alcohol Content
Cannabis
Crash risk
Culpability analysis
Driving Under the Influence - statistics & numerical data
Dronabinol - blood
Drug impairment
Female
Humans
Injured drivers
Logistic Models
Male
Methamphetamine - blood
Methylamphetamine
Middle Aged
Odds Ratio
Victoria
Young Adult
Victoria
Methylamphetamine
Crash risk
Cannabis
Culpability analysis
Injured drivers
Drug impairment
ISSN:0001-4575, 1879-2057, 1879-2057
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Shrnutí:•Culpability analysis was conducted on 5000 injured drivers in whom drug testing was conducted.•Alcohol gave large increases in the odds of culpability that was concentration-dependent.•Methylamphetamine also showed a large increase in the odds of culpability.•THC gave a modest increase in the odds of culpability•Benzodiazepines also gave a modest increase in the odds of culpability. Culpability analysis was conducted on 5000 drivers injured as a result of a vehicular collision and in whom comprehensive toxicology testing in blood was conducted. The sample included 1000 drivers for each of 5 years from approximately 5000–6000 drivers injured and taken to hospital in the State of Victoria. Logistic regression was used to investigate differences in the odds of culpability associated with alcohol and drug use and other selected crash attributes using the drug-free driver as the reference group. Adjusted odds ratios were obtained from multivariable logistic regression models in which other potentially explanatory driver and crash attributes were included. Drivers with alcohol present showed large increases in the odds of culpability similar to that seen in other studies investigating associations between blood alcohol concentration and crash risk. Methylamphetamine also showed a large increase in the odds of culpability (OR 19) compared to the reference group at both below and above 0.1 mg/L, whereas those drivers with Δ9-tetrahydrocannabinol (THC) present showed only modest increase in odds when all concentrations were assessed (OR 1.9, 95 %CI 1.2–3.1). Benzodiazepines in drivers also gave an increase in odds (3.2, 95 %CI 1.6–6.1), but not other medicinal drugs such as antidepressants, antipsychotics and opioids. Drivers that had combinations of impairing drugs generally gave a large increase in odds, particularly combinations of alcohol with THC or benzodiazepines, and those drivers using both THC and methamphetamine.
Bibliografia:ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 23
ISSN:0001-4575
1879-2057
1879-2057
DOI:10.1016/j.aap.2019.105389