Sitting time and occupational and recreational physical activity in relation to the risk of esophageal squamous cell carcinoma
Authors Chen P, Song Q, Han J, Xu H, Chen T, Xu J, Cheng Y
Received 29 July 2017
Accepted for publication 6 September 2017
Published 27 September 2017 Volume 2017:10 Pages 4787—4794
Checked for plagiarism Yes
Review by Single-blind
Peer reviewers approved by Dr Colin Mak
Peer reviewer comments 4
Editor who approved publication: Dr Ingrid Espinoza
Pengxiang Chen,1 Qingxu Song,1 Jie Han,2 Huapu Xu,3 Tong Chen,4 Jiaqi Xu,5 Yufeng Cheng1
1Department of Radiation Oncology, Qilu Hospital of Shandong University, 2Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong University, Jinan, 3Department of Oncology, Pingyi Hospital of Traditional Chinese Medicine, Pingyi, 4Department of Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 5Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, People’s Republic of China
Backgrounds: Sitting time and physical activity are associated with cancer risk; however, their roles in the development of esophageal squamous cell carcinoma (ESCC) are inconclusive. This study aimed to investigate the effects of total sitting time, occupational activity time (OAT), and recreational activity time (RAT) on ESCC risk.
Methods: Five hundred fifty-seven ESCC patients and 543 healthy controls matched by sex and age were recruited for this study. Conditional logistic regression was performed to obtain odds ratios (ORs) and 95% confidence intervals (CIs).
Results: Longer total sitting time (adjusted OR [AOR] 2.54, 95% CI 1.58–4.09) and longer OAT (AOR 2.90, 95% CI 2.11–3.99) were associated with higher ESCC risk, while longer RAT (AOR 0.27, 95% CI 0.19–0.38) could reduce ESCC risk. When the body mass index was incorporated into the multivariable models, the results changed slightly. In risk estimation according to sex, the same trends were observed in both men and women. Furthermore, longer RAT could completely or partially diminish the impacts of longer sitting time and OAT on increasing ESCC risk.
Conclusion: Long sitting time and long OAT can increase the risk of ESCC, while long RAT is significantly associated with decreased ESCC risk.
Keywords: esophageal squamous cell carcinoma, sitting time, physical activity, cancer epidemiology, carcinogenesis
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