Abstract Title:

Vitamin d and lung cancer risk: a comprehensive review and meta-analysis.

Abstract Source:

Cell Physiol Biochem. 2015 ;36(1):299-305. Epub 2015 May 4. PMID: 25967968

Abstract Author(s):

Liqun Zhang, Sihai Wang, Xiaoyu Che, Xuehui Li

Article Affiliation:

Liqun Zhang

Abstract:

BACKGROUND/AIM: Vitamin D has been suggested to have important roles against cancer development. There were several published studies on the association between vitamin D and lung cancer risk, but not conclusive results were available.

METHODS: To clarify the role of vitamin D in lung carcinogenesis, we performed a comprehensive review of the literature and a meta-analysis to evaluate the association of serum vitamin D levels and dietary vitamin D intake with lung cancer risk. Twelve studies (9 prospective cohort and 3 nested case-control studies) with a total of 288,778 individuals were included. The summary relative risk (RR) with 95% confidence interval (CI) was used to assess lung cancer risk.

RESULTS: Meta-analysis of total 12 studies showed that RR for the association of high vitamin D status with lung cancer was 0.84 (95%CI 0.78-0.90, P<0.001). The RR of lung cancer for the highest versus lowest quintile of serum vitamin D levels was 0.83 (95%CI 0.77-0.90, P<0.001). The RR of lung cancer for the highest versus lowest quintile of vitamin D intake was 0.89 (95%CI 0.74-1.06, P = 0.184).

CONCLUSION: Current data suggest an inverse association between serum vitamin D and lung cancer risk. Further studies are needed to investigate the effect of vitamin D intake on lung cancer risk and to evaluate whether vitamin D supplementation can prevent lung cancer.© 2015 S. Karger AG, Basel.

Study Type : Meta Analysis, Review

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