Insomnia in shift-workers : a survey for hospital nurses taking account of sleep environment and work stress

1)通过测量噪声水平，对轮班工作的医院护士在睡眠期间的公寓声环境进行了评估。他们的睡眠环境往往是不足的声音水平，无论白天或晚上。也有人建议，间歇性清醒时，可能会发生的声音水平高。应该强调的是，倒班工人的睡眠环境不仅需要在夜间保持安静，而且在白天也需要保持安静。进一步的研究应关注白天和夜间理想的声环境是否相似。2）比较医院护士和普通白领的工作压力。医院护士工作压力的特点是工作要求高、报酬感强。他们的工作控制感和同事支持感与其他白领处于同一水平。与普通白领相比，护士的抑郁程度更高，精神疲劳程度更重 ...更多信息 工人护士的心理健康与身心工作量、人际关系压力有关，而与医院护士的工作压力无关。3）医院护士失眠的发生率明显高于一般人群。自评睡眠质量的日间差异以夜班后睡眠质量差最明显，节假日后睡眠质量差也最明显。失眠危险因素的多因素分析结果如下。（1）晚班次数较少的人，其行为表现出明显的适应性。B）在那些最近假期较少的人中，失眠是频繁的，这表明需要自由时间来调整被扰乱的睡眠-觉醒节律。（3）抑郁症还与工作压力有关，工作压力与患者病情严重程度有关，来自外界的奖励较少。d）没有任何因素可以解释医院护士失眠的高患病率;这似乎是由轮班工作本身造成的。e）与一般人群相比，在一些医院中使用催眠药的人数较多。f）没有证据表明他们的失眠与工作中的错误有关。少

1) Sound environment in the apartment houses of hospital nurses occupied with rotating shift-work was assessed during sleep periods by measuring sound levels. Their sleep environment was often inadequate in terms of sound levels regardless of day or night. It was also suggested that intermittent waking was likely to occur when sound level was high. It should be stressed that shift-workers' sleep environment needs to be kept quiet not only at night but also at daytime. Further research should focus on whether the desirable sound environment at daytime is similar to that at night.2) The work stress in hospital nurses was compared with that in the general white-collar workers. The characteristics of work stress in hospital nurses were high demand and much feeling of reward from work. Their job-control and support from co-workers were at the same levels of the other white-collars'. The nurses were much more depressed and felt much more mental fatigue, compared with the general white-collar … More workers. Their mental health was associated with physical/mental workload and the stress due to interpersonal relationships with co-workers, but not with the work stress which is proper to hospital nurses. This suggests that the main causes of their mental health problems are rather the general working conditions than the nurses' particular situations.3) The prevalence of insomnia in hospital nurses was much higher than that in the general population As for day-to-day variation in self-rated sleep quality, they seemed to experience poor sleep after night shift and also after holidays. The results of multivariate analysis for risk factors of insomnia were as follows. a) Insomnia was frequent among those who recently experienced night shift fewer times, suggesting the adaptation effect to shift-work. b) Insomnia was frequent among those who recently had fewer holidays, suggesting the need of free time for the adjustment of disturbed sleep-wake rhythm. c) Insomnia was also associated with the work stress related to the severity of patients and the less reward from world. d) There was no factors which explains the high prevalence of insomnia in hospital nurses ; it seems to be caused by their shift-work itself. e) There were more users of hypnotic in some hospitals, compared with in the general population. f) There was no evidence that their insomnia is related to the incidence of errors in work. Less