不同光照治疗方案对改善轮班工作者睡眠质量效果的系统评价

Effectiveness of light therapy on sleep quality in shift workers:a systematic review

目的评价光照治疗的环境、工具、光照强度、每天治疗时间、持续时间等对轮班工作者睡眠质量的影响,旨在为制订光照治疗的最佳方案提供借鉴。方法全面检索中、英文数据库中关于光照治疗对轮班工作者睡眠质量影响的随机对照试验,经2名研究者按照纳入和排除标准独立筛选文献、提取资料、评价文献质量,分别对光照治疗环境、工具、光照强度、每天治疗时间等进行描述性分析。结果最终纳入11篇文献,光照治疗对环境的要求相对严格,光照强度2 000~10 000 lx、光照持续时间30~300 min,光照疗程持续1周以上,白班的轮班工作者05:00后进行光照治疗,夜班的轮班工作者01:00进行光照治疗对睡眠质量的提高效果较好。结论光照治疗的最适宜光照强度、每天光照治疗的时间、光照治疗持续时间还有待更多的实证研究。

Objective To evaluate the effectiveness of light therapy on improving sleep quality in shift workers. Methods We searched both Chinese and English language databases to collect randomized controlled trials（RCTs） regarding the effectiveness of light therapy on improving sleep quality in shift workers. The studies were selected according to inclusion and exclusion criteria and were critically appraised by two reviewers. Data of included stud- ies were extracted,and only descriptive analysis was conducted. Results Eleven RCTs were included. The contents of light therapy included：environment and tools of light therapy,light intensity, time of illumination,duration of light and frequency of illumination. Conclusion Different light therapy tools had no effects on the sleep quality of shift workers. Light therapy meeting the following conditions：light intensity within the scope of 2 000-10 000 ix,time of illumination during the day or the night,duration of light more than 30 rain,frequency of illumination more than 1 week, can have significant effects on sleep quality of shift workers. Further studies should explore the optimal light intensity,the optimal time of illumination,frequency of illuminationfor stable effects,and observation of long-term effects of sleep quality.