The mediating effects of perceived cognitive disturbances on reported sleep disturbance, presenteeism, and functional disability in Japanese adult workers

要旨

Sleep disturbance, cognitive disturbances, and presenteeism have been identified to contribute to functional disability in workers. However, the role of perceived cognitive disturbances in these relationships is yet to be well understood. Therefore, we examined the mediating effects of perceived cognitive disturbances in Japanese adult workers. We administered to 458 Japanese adult workers the Pittsburgh Sleep Quality Index, Cognitive Complaints in Bipolar Disorder Rating Assessment, Work Limitations Questionnaire 8, and Sheehan Disability Scale in order to assess reported sleep disturbance, perceived cognitive disturbances, presenteeism, and functional disability, respectively. We performed structural equation modeling to evaluate the relations among the variables. The results of the structural equation modeling showed that perceived cognitive disturbances significantly mediated the effects of reported sleep disturbance on presenteeism and functional disability; furthermore, presenteeism significantly mediated the effects of reported sleep disturbance and perceived cognitive disturbances on functional disability. This study was a cross-sectional design, which could have prevented us from evaluating the causal relationships among the parameters. Furthermore, all the participants were adults; hence, our results cannot be generalized to children or adolescents. Our results showed the mediating effects of perceived cognitive disturbances in the relations between reported sleep disturbance, presenteeism, and functional disability. To reduce the functional disability and presenteeism associated with reported sleep disturbance, the mediating effects of perceived cognitive disturbances in adult workers should be evaluated. In the future, development of interventions targeting perceived cognitive disturbances associated with reported sleep disturbance may be needed.

主題