Study Objectives: The study was aimed at estimating the effect of alcohol consumption, time of day, and their interaction on traffic crashes in a real regional context. Methods: Blood alcohol concentration (BAC) data were collected from drivers involved in traffic accidents during one year in an Italian region and in a control group of drivers over the same road network. Mean circadian sleep propensity was estimated from a previous study as function of time of day. Accident risk was analyzed by logistic regression as function of BAC and circadian sleep propensity. Results: BAC values greater than zero were found in 72.0% of the drivers involved in crashes and in 40.4% of the controls. Among the former 23.6% of the drivers exceeded the BAC legal threshold of 0.05 g/dL, while illegal values were found in 10.4% of the controls. The relative risk showed a significant increase with both BAC and circadian sleep propensity (as estimated from time of day) and their interaction was significant. Conclusions: Due to the significant interaction, even low BAC levels strongly increased accident risk when associated with high sleep propensity.

Circadian sleep propensity and alcohol interaction at the wheel / Garbarino, Sergio; Nobili, Lino; Philip, Pierre; Plazzi, Giuseppe; Campus, Claudio; Morrone, Elisa; De Carli, Fabrizio. - In: JOURNAL OF CLINICAL SLEEP MEDICINE. - ISSN 1550-9389. - 12:7(2016), pp. 1011-1017. [10.5664/jcsm.5938]

Circadian sleep propensity and alcohol interaction at the wheel

PLAZZI, GIUSEPPE;
2016

Abstract

Study Objectives: The study was aimed at estimating the effect of alcohol consumption, time of day, and their interaction on traffic crashes in a real regional context. Methods: Blood alcohol concentration (BAC) data were collected from drivers involved in traffic accidents during one year in an Italian region and in a control group of drivers over the same road network. Mean circadian sleep propensity was estimated from a previous study as function of time of day. Accident risk was analyzed by logistic regression as function of BAC and circadian sleep propensity. Results: BAC values greater than zero were found in 72.0% of the drivers involved in crashes and in 40.4% of the controls. Among the former 23.6% of the drivers exceeded the BAC legal threshold of 0.05 g/dL, while illegal values were found in 10.4% of the controls. The relative risk showed a significant increase with both BAC and circadian sleep propensity (as estimated from time of day) and their interaction was significant. Conclusions: Due to the significant interaction, even low BAC levels strongly increased accident risk when associated with high sleep propensity.
2016
12
7
1011
1017
Circadian sleep propensity and alcohol interaction at the wheel / Garbarino, Sergio; Nobili, Lino; Philip, Pierre; Plazzi, Giuseppe; Campus, Claudio; Morrone, Elisa; De Carli, Fabrizio. - In: JOURNAL OF CLINICAL SLEEP MEDICINE. - ISSN 1550-9389. - 12:7(2016), pp. 1011-1017. [10.5664/jcsm.5938]
Garbarino, Sergio; Nobili, Lino; Philip, Pierre; Plazzi, Giuseppe; Campus, Claudio; Morrone, Elisa; De Carli, Fabrizio
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1205862
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