Abstract
Background: Prospective evidence is inconsistent regarding the association between vegetable/fruit intake and the risk of gastric cancer. Methods: In an analysis of original data from four population-based prospective cohort studies encompassing 191 232 participants, we used Cox proportional hazards regression to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) of gastric cancer incidence according to vegetable and fruit intake and conducted a meta-analysis of HRs derived from each study. Results: During 2 094 428 person-years of follow-up, 2995 gastric cancer cases were identified. After adjustment for potential confounders, we found a marginally significant decrease in gastric cancer risk in relation to total vegetable intake but not total fruit intake: the multivariate-adjusted HR (95% CI; P for trend) for the highest versus the lowest quintile of total vegetable intake was 0.89 (0.77-1.03; P for trend = 0.13) among men and 0.83 (0.67-1.03; P for trend = 0.40) among women. For distal gastric cancer, the multivariate HR for the highest quintile of total vegetable intake was 0.78 (0.63-0.97; P for trend = 0.02) among men. Conclusion(s): This pooled analysis of data from large prospective studies in Japan suggests that vegetable intake reduces gastric cancer risk, especially the risk of distal gastric cancer among men.
Original language | English |
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Pages (from-to) | 1228-1233 |
Number of pages | 6 |
Journal | Annals of Oncology |
Volume | 25 |
Issue number | 6 |
DOIs | |
Publication status | Published - 2014 Jun 1 |
Keywords
- Epidemiology
- Fruit
- Pooled analysis
- Prospective studies
- Stomach neoplasms
- Vegetables
ASJC Scopus subject areas
- Hematology
- Oncology