Red and processed meat consumption and the risk of lung cancer: a dose-response meta-analysis of 33 published studies

Xiu-Juan Xue; Qing Gao; Jian-Hong Qiao; Jie Zhang; Cui-Ping Xu; Ju Liu
July 2014
International Journal of Clinical & Experimental Medicine;2014, Vol. 7 Issue 6, p1542
Academic Journal
This meta-analysis was to summarize the published studies about the association between red/processed meat consumption and the risk of lung cancer. 5 databases were systematically reviewed, and random-effect model was used to pool the study results and to assess dose-response relationships. Results shown that six cohort studies and twenty eight case-control studies were included in this meat-analysis. The pooled Risk Radios (RR) for total red meat and processed meat were 1.44 (95% CI, 1.29-1.61) and 1.23 (95% CI, 1.10-1.37), respectively. Dose-response analysis revealed that for every increment of 120 grams red meat per day the risk of lung cancer increases 35% and for every increment of 50 grams red meat per day the risk of lung cancer increases 20%. The present dose-response meta-analysis suggested that both red and processed meat consumption showed a positive effect on lung cancer risk.


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