International Journal of Environmental Research and Public Health
Genta Miyama,Masakatsu Fukumoto, Ritsuko Kamegaya and Masahito Hitosugi
Serious accidents have been caused by drowsy bus drivers and have necessitated an
examination of the risk factors involved. A questionnaire survey among employees of a bus company
was conducted in Ibaraki Prefecture, Japan in September 2014. Respondents were asked to report
details of their work and life over the preceding month. The 301 valid responses by bus drivers
(295 men and 6 women) with a mean age of 51.6 years (range: 24–73 years) were used for analysis.
Univariable logistic regression showed that factors affecting the incidence of collisions and near-miss
incidents by drowsy drivers were continued driving when feeling sick, reporting a physical condition,
number of sleep hours, time spent with family, working hours, and nutritional balance