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Revista Colombiana de Psiquiatría

versão impressa ISSN 0034-7450


GOMEZ-RESTREPO, Carlos et al. Blood Alcohol Concentration and Somnolence among Drivers Studied in Simulators: A Meta-Analysis. rev.colomb.psiquiatr. [online]. 2011, vol.40, n.2, pp.229-243. ISSN 0034-7450.

Introduction: Traffic accidents caused by drivers under the influence of alcohol are a major cause of road accidents and mortality. Faced with this problem, defining the limit of alcohol levels from which wakefulness for the purpose of driving is jeopardized is critical. Objectives: To determine the minimum concentration of alcohol in blood that alters wakefulness or generates some degree of drowsiness that compromises driving ability and skill. Method: Meta-analysis. Systematic review of eight databases, limited to publications between 1999 and 2009 in which the assessment was made through simulators and blood alcohol concentrations were measured. Results: In all the subgroups studied it was clear that people with some intake of alcohol tend to have some degree of drowsiness compared with those with a blood alcohol level of 0. Standardized mean differences in sleepiness were high. This means there was a great difference between those with blood alcohol concentrations and those without. Conclusions: In all outcomes it was evident that regardless of the amount of alcohol in blood, alcohol intake provoked in the drivers a tendency towards sleepiness. We observed that most simulator studies tend to favor zero alcohol intake while driving because of the high degree of drowsiness that occurs.

Palavras-chave : Meta-analysis; alcohol drinking; automobiles.

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