Data from: Sleep apnea, sleep debt and daytime sleepiness are independently associated with road accidents: a cross-sectional study on truck drivers

Background: Recent research has found evidence of an association between
motor vehicle accidents (MVAs) or near miss accidents (NMAs), and
excessive daytime sleepiness (EDS) or its main medical cause, Obstructive
Sleep Apnea (OSA). However, EDS can also be due to non-medical factors,
such as sleep debt (SD), which is common among professional truck drivers.
On the opposite side, rest breaks and naps are known to protect against
accidents. Study objectives: To investigate the association of OSA, SD,
EDS, rest breaks and naps, with the occurrence of MVAs and NMAs in a large
sample of truck drivers. Methods: 949 male truck drivers took part in a
cross-sectional medical examination and were asked to complete a
questionnaire about sleep and waking habits, risk factors for OSA and EDS.
Results: MVAs and NMAs were reported by 34.8% and 9.2% of participants,
respectively. MVAs were significantly predicted by OSA (OR= 2.32
CI95%=1.68-3.20), SD (OR=1.45 CI95%=1.29-1.63), EDS (OR=1.73
CI95%=1.15-2.61) and prevented by naps (OR=0.59 CI95%=0.44-0.79) or rest
breaks (OR=0.63 CI95%=0.45-0.89). NMAs were significantly predicted by OSA
(OR= 2.39 CI95%=1.47- 3.87) and SD (OR=1.49 CI95%=1.27- 1.76) and
prevented by naps (OR=0.52 CI95%=0.32- 0.85) or rest breaks (OR=0.49
CI95%=0.29- 0.82). Conclusions: When OSA, SD or EDS are present, the risk
of MVAs or NMAs in truck drivers is severely increased. Taking a rest
break or a nap appear to be protective against accidents.