Vegetable and fruit intake and the risk of bladder cancer: Japan Public Health Center-based prospective study.

Abstract

BACKGROUND:

Vegetable and fruit consumption may have a protective effect against several types of cancer. However, evidence suggesting that increased intake of vegetables and fruits, their subtypes, or the antioxidant nutrients they contain in abundance decreases the risk of bladder cancer is limited.

METHODS:

This study included 80,952 participants from the Japan Public Health Center-based Prospective Study, who responded to a food frequency questionnaire in a 5-year follow-up survey in 1995-1998 and were followed up until December 2015 to investigate the associations between intake of vegetables and fruits, their subtypes, or the antioxidant nutrients and bladder cancer risk using Cox proportional hazards regression models.

RESULTS:

Within 1,287,514 person-years of follow-up, 401 bladder cancer cases (307 men and 94 women) were diagnosed. No association was found between intake of total vegetable and fruit, total vegetable, total fruit, subtypes of vegetables and fruits, or antioxidant nutrients and bladder cancer risk in both men and women, even in the analyses conducted among men stratified by smoking status.

CONCLUSIONS:

In this population, the consumption of vegetables and fruits was not associated with the risk of bladder cancer.

• Authors: Nobuhiro Narii, Tomotaka Sobue, Ling Zha, Tetsuhisa Kitamura, Norie Sawada, Motoki Iwasaki, Manami Inoue, Taiki Yamaji, Shoichiro Tsugane
• Journal: British journal of cancer (Br J Cancer) Vol. 126 Issue 11 Pg. 1647-1658 (06 2022) ISSN: 1532-1827 [Electronic] England
• PMID: 35241777 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
• Copyright: © 2022. The Author(s), under exclusive licence to Springer Nature Limited.

Chemical References

• Antioxidants

Topics

• Antioxidants
• Diet
• Female
• Fruit
• Humans
• Japan (epidemiology)
• Male
• Prospective Studies
• Public Health
• Rare Diseases
• Risk Factors
• Surveys and Questionnaires
• Urinary Bladder Neoplasms (epidemiology, etiology, prevention & control)
• Vegetables