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Zhong S, Ma T, Chen L, et al. Physical Activity and Risk of Lung Cancer: A Meta-analysis. Clin J Sport Med. 2016;26(3):173-81doi: 10.1097/JSM.0000000000000219.
Zhong, S., Ma, T., Chen, L., Chen, W., Lv, M., Zhang, X., & Zhao, J. (2016). Physical Activity and Risk of Lung Cancer: A Meta-analysis. Clinical journal of sport medicine : official journal of the Canadian Academy of Sport Medicine, 26(3), 173-81. https://doi.org/10.1097/JSM.0000000000000219
Zhong, Shanliang, et al. "Physical Activity and Risk of Lung Cancer: A Meta-analysis." Clinical journal of sport medicine : official journal of the Canadian Academy of Sport Medicine vol. 26,3 (2016): 173-81. doi: https://doi.org/10.1097/JSM.0000000000000219
Zhong S, Ma T, Chen L, Chen W, Lv M, Zhang X, Zhao J. Physical Activity and Risk of Lung Cancer: A Meta-analysis. Clin J Sport Med. 2016 May;26(3):173-81. doi: 10.1097/JSM.0000000000000219. PMID: 26213983.
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Clin J Sport Med. 2016 May;26(3):173-81. doi: 10.1097/JSM.0000000000000219.

Physical Activity and Risk of Lung Cancer: A Meta-analysis.

Clinical journal of sport medicine : official journal of the Canadian Academy of Sport Medicine

Shanliang Zhong, Tengfei Ma, Lin Chen, Weixian Chen, Mengmeng Lv, Xiaohui Zhang, Jianhua Zhao

Affiliations

  1. *Center of Clinical Laboratory Science, Jiangsu Cancer Hospital Affiliated to Nanjing Medical University, Nanjing, China; †Teaching and Research Office of General Surgery, Xuzhou Medical College, Xuzhou, China; and ‡Department of General Surgery, Jiangsu Cancer Hospital Affiliated to Nanjing Medical University, Nanjing, China.

PMID: 26213983 DOI: 10.1097/JSM.0000000000000219

Abstract

OBJECTIVE: Previous studies concerning the association between physical activity (PA) and risk of lung cancer yielded mixed results. We investigated the association by performing a meta-analysis.

DATA SOURCES: Relevant studies were identified by searching PubMed and EMBASE to January 2014. Twelve cohort studies and 6 case-control studies involving 2 468 470 participants and 26 453 cases of lung cancer were selected for meta-analysis.

MAIN RESULTS: We calculated the summary relative risk (RR) and 95% confidence intervals (CIs) using random-effects models. The analyses showed that individuals who participated in any amount of PA had an RR of 0.79 (95% CI, 0.73-0.86) for risk of lung cancer. Those who participated in high PA (vs low PA) had an RR of 0.75 (95% CI, 0.68-0.84). Stratifying by study design (case-control and cohort studies), smoking status (current, former, and never smokers), and gender, similar inverse associations were found for all the subgroups except for never smokers subgroup.

CONCLUSIONS: Pooled results from observational studies support a protective effect of PA against lung cancer.

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