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Estimating the drink driving attributable fraction of road traffic deaths in Mexico
Author(s) -
SantoyoCastillo Dzoara,
PérezNúñez Ricardo,
Borges Guilherme,
Híjar Martha
Publication year - 2018
Publication title -
addiction
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.424
H-Index - 193
eISSN - 1360-0443
pISSN - 0965-2140
DOI - 10.1111/add.14153
Subject(s) - demography , environmental health , medicine , confidence interval , odds ratio , poison control , injury prevention , driving under the influence , epidemiology , attributable risk , occupational safety and health , population , pathology , sociology
Aim To estimate the Drink Driving Attributable Fraction (DDAF) of road traffic injury mortality in car occupants in Mexico during 2010–13. Design A case–control study was conducted to examine the presence of alcohol in analysed body fluids of car occupants killed in fatal crashes (cases) compared with car drivers tested in alcohol‐testing checkpoints who were not involved in a fatal collision (controls). Two data sets were used for the period 2010–13: the forensic module of the Epidemiological Surveillance System on Addictions that included car occupants killed in a collision (cases) and a data set from alcohol‐testing at police checkpoints available for matching municipalities (controls). Setting Mexico. Participants The analysed study sample included 1718 car occupants killed in a traffic collision and 80 656 drivers tested at alcohol police checkpoints, all from 10 municipalities. Measurements Unadjusted and adjusted odds ratios (OR) of presence of alcohol in body fluids were obtained stratified by sex and age groups and the interaction with these two variables were assessed. The ORs were used to calculate the DDAF. Findings It was estimated that 19.5% of car occupants’ deaths due to road traffic injuries were attributable to alcohol consumption [95% confidence interval (CI) = 19.1–19.9]. The adjusted OR of presence of alcohol was 6.84 (95% CI = 6.06–7.71) overall. For males it was 7.21 (95% CI = 6.35–8.18) and for females it was 4.45 (95% CI = 3.01–6.60). The ORs were similar across younger age bands (10–19 years: 9.61, 95% CI = 6.72–13.73; 20–29 years: 7.70, 95% CI = 6.28–9.4; and 30–49 years: 7.21, 95% CI = 5.98–8.70); and lower but still elevated among older people (50+ years: 3.19, 95% CI = 2.19–4.65). Conclusions An estimated 19.5% of car occupant deaths in Mexico may have been caused by alcohol in 2010–13.