Relationships among shift work, hair cortisol concentration and sleep disorders: a cross-sectional study in China.
Yu ZhangJiayang ShenZiqi ZhouLingli SangXun ZhuangMinjie ChuTian TianJing XiaoYulong LianPublished in: BMJ open (2020)
We found that, when compared with the fixed day shift, shiftwork was associated with both the higher HCC, and also with an increased risk of sleep disorders. High HCC was associated with the occurrence of sleep disorders. In addition, HCC had mediating effect in shift work and sleep disorders. Thus, HCC can be considered as an early marker of shiftwork circadian disruption to early detection and management of sleep disorders.