Article Publish Status: FREE
Abstract Title:

Carrot intake and incidence of urothelial cancer: a systematic review and meta-analysis.

Abstract Source:

Oncotarget. 2017 Sep 29 ;8(44):77957-77962. Epub 2017 Aug 3. PMID: 29100438

Abstract Author(s):

Xiao Luo, Hongsun Lu, Yaojun Li, Shijian Wang

Article Affiliation:

Xiao Luo


Previous studies regarding the relationship between carrot intake and risk of urothelial cancer have reported conflicting results. Hence we performed a meta-analysis of eligible studies to summarize evidence on this association. A comprehensive search up to January 2017 was performed in PubMed, Web of Science, Scopus, EMBASE, Cochrane register, and Chinese National Knowledge Infrastructure (CNKI) databases. The combined odds ratio (OR) with 95% confidence interval (CI) for the highest versus the lowest intake of carrot was calculated. A total of six epidemiological studies consisting of four case-control and two cohort studies were included. Overall analysis indicated a significantly reduced risk of urothelial cancer for high intake of carrot (OR = 0.63, 95% CI 0.44-0.90). Obvious significant heterogeneity was observed among included studies (<0.001 for heterogeneity;= 79.6%). There was no significant publication bias by Begg's test (= 0.348) or Egger's test (= 0.130). In conclusion, this meta-analysis indicates that high intake of carrot is associated with a low incidence of urothelial cancer. Considering the limited included studies and huge heterogeneity, further large well-designed prospective cohort studies are warranted to confirm the findings from our meta-analysis.

Study Type : Meta Analysis, Review
Additional Links
Pharmacological Actions : Chemopreventive : CK(5374) : AC(1717)

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