Association of shift-work, daytime napping, and nighttime sleep with cancer incidence and cancer-caused mortality in Dongfeng-tongji cohort study

25 Aug 2016Yansen Bai, Xiaoliang Li, Ke Wang, Shi Chen, Suhan Wang, Zhuowang Chen, Xiulong Wu, Wenshan Fu, Sheng Wei, Jing Yuan, Ping Yao, Xiaoping Miao, Xiaomin Zhang, Meian He, Handong Yang, Tangchun Wu, Huan Guo

Long night-shift work history, without daytime napping, and long nighttime sleep duration were independently and jointly associated with higher cancer incidence among males.

Cross-section study
3 effects
25377 subjects

Reported Outcomes

CausesOutcomeCertainty

Long Duration of Sleep Musculoskeletal outcome
Long Duration of Sleep
Musculoskeletal system

Cancer Lymphatic outcome
Increased risk of Cancer
Lymphatic system

High evidence
59.0%

Night shift work Selfcare risk & protective factor

Cancer Lymphatic outcome
Increased risk of Cancer
Lymphatic system

High evidence
27.0%

Napping Selfcare risk & protective factor
Napping
Selfcare

Cancer Lymphatic outcome
Strong decrease risk of Cancer
Lymphatic system

Moderate evidence
-103.0%