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J Gastric Cancer. 2015 Dec;15(4):256-261. English. Meta-Analysis.
Fallahzadeh H , Jalali A , Momayyezi M , Bazm S .
Research Center of Prevention and Epidemiology of Non-Communicable Disease, Shahid Sadoughi University of Medical Sciences, Iran.
Department of Epidemiology, Faculty of Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Department of Health Education, Faculty of Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.

PURPOSE: Gastric cancer is the third leading cause of cancer-related mortality, with the incidence and mortality being higher in men than in women. Various studies have shown that eating carrots may play a major role in the prevention of gastric cancer. We conducted a meta-analysis to determine the relationship between carrot consumption and gastric cancer. MATERIALS AND METHODS: We searched multiple databases including PubMed, Cochrane Library, Scopus, ScienceDirect, and Persian databases like Scientific Information Database (SID) and IranMedx. The following search terms were used: stomach or gastric, neoplasm or cancer, carcinoma or tumor, and carrot. Statistical analyses were performed using Comprehensive Meta Analysis/2.0 software. RESULTS: We retrieved 81 articles by searching the databases. After considering the inclusion and exclusion criteria, 5 articles were included in this study. The odds ratio (OR) obtained by fixed effects model showed that a 26% reduction in the risk of gastric cancer has been associated with the consumption of carrots) OR=0.74; 95% confidence interval=0.68~0.81; P<0.0001). According to funnel graph, the results showed that the possibility of a publication bias does not exist in this study. CONCLUSIONS: The findings of this study showed an inverse relationship between the consumption of carrots and the risk of gastric cancer.

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