Associations Between Occupational Exposures to Volatile Organic Compounds (VOCs) and Sleep Problems

Objectives The purpose of this study, as a systematic review and meta-analysis, is to summarize the evidence on the effects of occupational exposure to VOCs on sleep quality. Methods We used five electronic bibliographic databases to identify eligible studies. Three groups of keywords were applied in the search strategy. In evaluating the quality of studies and risk of bias, we utilized the Joanna Briggs Institute tools and the Risk of Bias in Non-randomized Studies of Exposures (ROBINS-E) instruments, respectively. The pooled values were also calculated by meta-analysis. Results 37 articles were included in the study. There was a consistent finding that exposure to volatile organic compounds (VOCs) adversely affected sleep in workers across various professions. The pooled value of the odds ratio of sleep problems because of exposure to VOCs was 1.60 [95% CI (1.01, 2.19)]. Conclusion Most studies indicated that occupational exposure to VOCs can significantly influence the sleep of workers in various professions. The exposure can be associated with a variety of sleep problems.