At what blood alcohol concentration should drink-driving be illegal?

BMJ 1994; 308 doi: https://doi.org/10.1136/bmj.308.6936.1055 (Published 23 April 1994) Cite this as: BMJ 1994;308:1055
  1. A Guppy

    Legislators decide the maximum legal blood alcohol concentration for drivers,1 but their decisions should be informed by the best available scientific evidence, and here researchers have a role.

    Data from case-control studies of accident involvement and experimental studies of alcohol's effects on driving skills were considered before Britain introduced its blood alcohol limit in 1967.2 Results from the Grand Rapids case-control study3 and the Medical Research Council's research on simulated driving4 were interpreted as supporting the limit of 17.4 mmol/l. Different analyses of the data, however, could have supported a lower legal limit of 10.9-13.0 mmol/l.5, 6

    Reviewing data from several case-control studies, the National Research Council of the United States concluded that focusing on the risk of crash responsibility (as opposed …

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