title: Red and processed meat consumption and the risk of lung cancer: a dose-response meta-analysis of 33 published studies.
abstract: 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.
authors.affiliation: Qianfoshan Hospital, Shandong University Jinan, China.
authors.forename: Xiu-Juan
authors.initials: XJ
authors.lastname: Xue
authors.affiliation: Taishan Medical College Tai'an, China.
authors.forename: Qing
authors.initials: Q
authors.lastname: Gao
authors.affiliation: Qianfoshan Hospital, Shandong University Jinan, China.
authors.forename: Jian-Hong
authors.initials: JH
authors.lastname: Qiao
authors.affiliation: Shandong Medical College Jinan, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Qianfoshan Hospital, Shandong University Jinan, China.
authors.forename: Cui-Ping
authors.initials: CP
authors.lastname: Xu
authors.affiliation: Qianfoshan Hospital, Shandong University Jinan, China.
authors.forename: Ju
authors.initials: J
authors.lastname: Liu
keywords: Lung cancer; meta-analysis; processed meat; red meat