• Linda D Scott, Wei-Ting Hwang, Ann E Rogers, Tami Nysse, Grace E Dean, and David F Dinges.
• Kirkhof College of Nursing, Grand Valley State University, 312 Cook-Devos Center for Health Sciences, 301 Michigan Avenue NE, Grand Rapids, MI 49503, USA. scottl@gvsu.edu
• Sleep. 2007 Dec 1; 30 (12): 1801-7.

Study ObjectivesRecent studies have shown that extended shifts worked by hospital staff nurses are associated with significantly higher risk of errors, yet little information is available about the ability to remain alert during the nurses' commutes following the completion of an extended work shift. The purpose of this study is to describe the prevalence of drowsy driving episodes and the relationship between drowsy driving and nurse work hours, alertness on duty, working at night, and sleep duration.ParticipantsData were collected from 2 national random samples of registered nurses (n=895).Measurements And ResultsFull-time hospital staff nurses (n=895) completed logbooks on a daily basis for 4 weeks providing information concerning work hours, sleep duration, drowsy and sleep episodes at work, and drowsy driving occurrences. Almost 600 of the nurses (596/895) reported at least 1 episode of drowsy driving, and 30 nurses reported experiencing drowsy driving following every shift worked. Shorter sleep durations, working at night, and difficulties remaining awake at work significantly increased the likelihood of drowsy driving episodes.ConclusionsGiven the large numbers of nurses who reported struggling to stay awake when driving home from work and the frequency with which nurses reported drowsy driving, greater attention should be paid to increasing nurse awareness of the risks and to implementing strategies to prevent drowsy driving episodes to ensure public safety. Without mitigation, fatigued nurses will continue to put the public and themselves at risk.

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