No link between fruit or vegetable consumption and colorectal cancer risk in Japan
Author Information
Author(s): Tsubono Y, Otani T, Kobayashi M, Yamamoto S, Sobue T, Tsugane S
Primary Institution: Tohoku University School of Public Policy
Hypothesis
Is there an association between fruit and vegetable consumption and the risk of colorectal cancer in Japan?
Conclusion
The study found no significant association between fruit or vegetable intake and the risk of colorectal cancer.
Supporting Evidence
- The study included a large sample size of 88,658 participants.
- 705 cases of colorectal cancer were identified during the follow-up.
- Results were consistent with previous studies in Western populations.
Takeaway
Eating fruits and vegetables doesn't seem to help prevent colorectal cancer in Japan, even though people thought it might.
Methodology
The study analyzed data from two cohorts in the Japan Public Health Center study, following participants for cancer incidence over several years.
Potential Biases
Potential biases may arise from self-reported dietary intake.
Limitations
The food frequency questionnaires had a limited number of items and frequency categories.
Participant Demographics
Participants included 40,106 subjects aged 40-59 and 48,552 subjects aged 40-69, with a mix of men and women.
Statistical Information
Confidence Interval
0.70–1.19
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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