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. 2014 Jun 15;7(6):1542-53.
eCollection 2014.

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

Xiu-Juan Xue  1 , Qing Gao  2 , Jian-Hong Qiao  1 , Jie Zhang  3 , Cui-Ping Xu  1 , Ju Liu  1
Affiliations

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

Xiu-Juan Xue et al. Int J Clin Exp Med. .

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.

Keywords: Lung cancer; meta-analysis; processed meat; red meat.

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Figures

Figure 1
Figure 1
Flow chart for literature research.
Figure 2
Figure 2
Forest plot for red meat. M: Man; W: Woman; A: Adenocarcinoma; S: Squamous carcinoma.
Figure 3
Figure 3
Forest plot for processed meat.
See this image and copyright information in PMC

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