TY - JOUR PY - 2016// TI - Did amendments to the Ontario Highway Traffic Act in 2009-2010 affect the proportion of alcohol-related motor vehicle collisions seen at a Level I trauma centre over a 10-year period? JO - Canadian journal of emergency medicine A1 - Garnett, Meghan A1 - Charyk Stewart, Tanya A1 - Miller, Michael R. A1 - Lim, Rodrick A1 - Van Aarsen, Kristine A1 - Millard, Wanda SP - 106 EP - 111 VL - 19 IS - 02 N2 - OBJECTIVES To determine if changes to the Ontario Highway Traffic Act (OHTA) in 2009 and 2010 had an effect on the proportion of alcohol-related motor vehicle collisions (MVCs) presenting to a trauma centre over a 10-year period.

METHODS A retrospective review of the trauma registry at a Level I trauma centre in southwestern Ontario was undertaken. The trauma registry is a database of all trauma patients with an injury severity score (ISS) ≥12 and/or who had trauma team activation. Descriptive statistics were calculated. Interrupted time series analyses with ARIMA modeling were performed on quarterly data from 2004-2013.

RESULTS A total of 377 drivers with a detectable serum ethanol concentration (SEC) were treated at our trauma centre over the 10-year period, representing 21% of all MVCs. The majority (330; 88%) were male. The median age was 31 years, median SEC was 35.3 mmol/L, and median ISS was 21. A total of 29 (7.7%) drinking drivers died from their injuries after arriving to hospital. There was no change in the proportion of drinking drivers after the 2009 amendment, but there was a significant decline in the average SEC of drinking drivers after changes to the law. There was no difference in the proportion of drinking drivers ≤21 years after introduction of the 2010 amendment for young and novice drivers.

CONCLUSIONS There was a significance decline in the average SEC of all drinking drivers after the 2009 OHTA amendment, suggesting that legislative amendments may have an impact on drinking before driving behaviour.

Language: en

LA - en SN - 1481-8035 UR - http://dx.doi.org/10.1017/cem.2016.343 ID - ref1 ER -