The sleep of long-haul truck drivers

被引:238
作者
Mitler, MM
Miller, JC
Lipsitz, JJ
Walsh, JK
Wylie, CD
机构
[1] SCRIPPS CLIN,LA JOLLA,CA 92037
[2] SLEEP DISORDERS CTR METROPOLITAN TORONTO,TORONTO,ON,CANADA
[3] SLEEP MED & RES CTR,CHESTERFIELD,MO
[4] WYLIE & ASSOCIATES,GOLETA,CA
关键词
D O I
10.1056/NEJM199709113371106
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Background Fatigue and sleep deprivation are important safety issues for long-haul truck drivers. Methods We conducted round-the-clock electrophysiologic and performance monitoring of four groups of 20 male truck drivers who were carrying revenue-producing loads. We compared four driving schedules, two in the United States (five 10-hour trips of day driving beginning about the same time each day or of night driving beginning about 2 hours earlier each day) and two in Canada (four 13-hour trips of late-night-to-morning driving beginning at about the same time each evening or of afternoon-to-night driving beginning 1 hour later each day). Results Drivers averaged 5.18 hours in bed per day and 4.78 hours of electrophysiologically verified sleep per day over the five-day study (range, 3.83 hours of sleep for those on the steady 13-hour night schedule to 5.38 hours of sleep for those on the steady 10-hour day schedule). These values compared with a mean (+/-SD) self-reported ideal amount of sleep of 7.1+/-1 hours a day. For 35 drivers (44 percent), naps augmented the sleep obtained by an average of 0.45+/-0.31 hour. No crashes or other vehicle mishaps occurred. Two drivers had undiagnosed sleep apnea, as detected by polysomnography. Two other drivers had one episode each of stage 1 sleep while driving, as detected by electroencephalography. Forty-five drivers (56 percent) had at least 1 six-minute interval of drowsiness while driving, as judged by analysis of video recordings of their faces; 1067 of the 1989 six-minute segments (54 percent) showing drowsy drivers involved just eight drivers. Conclusions Long-haul truck drivers in this study obtained less sleep than is required for alertness on the job. The greatest vulnerability to sleep or sleep-like states is in the late night and early morning. (C) 1997, Massachusetts Medical Society.
引用
收藏
页码:755 / 761
页数:7
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