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Cited by 425

The DOI matches its Crossref record; 38 of the 38 references it cites were found in a registry or an index.

The Role of Tomato Products and Lycopene in the Prevention of Prostate Cancer: A Meta-Analysis of Observational Studies

Etminan, Mahyar, Takkouche, Bahi, Caamaño-Isorna, Francisco·2004·Cancer Epidemiology, Biomarkers & Prevention

Abstract

Purpose: To determine whether intake of tomato products reduces the risk of prostate cancer using a meta-analysis. Methods: We systematically searched MEDLINE and EMBASE and contacted authors to identify potential studies. Log relative risks (RRs) were weighed by the inverse of their variances to obtain a pooled estimate with its 95% confidence interval (CI). Logistic regression and Poisson regression analyses were used to determine the effect produced by a daily intake of one serving of tomato product. Results: Eleven case-control studies and 10 cohort studies or nested case-control studies presented data on the use of tomato, tomato products, or lycopene and met our inclusion criteria. Compared with nonfrequent users of tomato products (1st quartile of intake), the RR of prostate cancer among consumers of high amounts of raw tomato (5th quintile of intake) was 0.89 (95% CI 0.80–1.00). For high intake of cooked tomato products, this RR was 0.81 (95% CI 0.71–0.92). The RR of prostate cancer related to an intake of one serving/day of raw tomato (200 g) was 0.97 (95% CI 0.85–1.10) for the case-control studies and 0.78 (95% CI 0.66–0.92) for cohort studies. Conclusion: Our results show that tomato products may play a role in the prevention of prostate cancer. However, this effect is modest and restricted to high amounts of tomato intake. Further research is needed to determine the type and quantity of tomato products with respect to their role in preventing prostate cancer.

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Metadata

Authors
Etminan, M., Takkouche, B., & Caamaño-Isorna, F.
Venue
Cancer Epidemiology, Biomarkers & Prevention
Published
2004-03-01
Volume
13
Issue
3
Pages
340-345
ISSN
  • 1055-9965 (ISSN-L)
  • 1538-7755
OpenAlex
W2097048367
Cited by
425
References
38
FWCI
4.00
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: The Role of Tomato Products and Lycopene in the Prevention of Prostate Cancer: A Meta-Analysis of Observational Studies. https://app.cochat.ai/papers/10.1158/1055-9965.340.13.3
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Etminan, M., Takkouche, B., & Caamaño-Isorna, F. (2004). The Role of Tomato Products and Lycopene in the Prevention of Prostate Cancer: A Meta-Analysis of Observational Studies. Cancer Epidemiology, Biomarkers & Prevention. https://doi.org/10.1158/1055-9965.340.13.3

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