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- Hedelin, Maria, et al.
(författare)
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Dietary phytoestrogen, serum enterolactone and risk of prostate cancer : the cancer prostate Sweden study (Sweden)
- 2006
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Ingår i: Cancer Causes and Control. - Karolinska Inst, Dept Med Epidemiol & Biostat, SE-17177 Stockholm, Sweden. Orebro Univ Hosp, Dept Urol, Orebro, Sweden. Ctr Assessment Med Technol, Orebro, Sweden. Univ Helsinki, Dept Clin Chem, SF-00100 Helsinki, Finland. Univ Helsinki, Inst Prevent Med Nutr & Canc, Folkhalsan Res Ctr, Helsinki, Finland. Umea Univ, Dept Radiat Sci Oncol, Umea, Sweden. : Springer. - 0957-5243 .- 1573-7225. ; 17:2, s. 169-180
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: Based on evidence that phytoestrogens may protect against prostate cancer, we evaluated the associations between serum enterolactone concentration or dietary phytoestrogen intake and risk of prostate cancer. METHODS: In our Swedish population-based case-control study, questionnaire-data were available for 1,499 prostate cancer cases and 1,130 controls, with serum enterolactone levels in a sub-group of 209 cases and 214 controls. Unconditional logistic regression was performed to estimate multivariate odds ratios (ORs) and 95% confidence intervals (CIs) for associations with risk of prostate cancer. RESULTS: High intake of food items rich in phytoestrogens was associated with a decreased risk of prostate cancer. The OR comparing the highest to the lowest quartile of intake was 0.74 (95% CI: 0.57-0.95; p-value for trend: 0.01). In contrast, we found no association between dietary intake of total or individual lignans or isoflavonoids and risk of prostate cancer. Intermediate serum levels of enterolactone were associated with a decreased risk of prostate cancer. The ORs comparing increasing quartiles of serum enterolactone concentration to the lowest quartile were, respectively, 0.28 (95% CI: 0.15-0.55), 0.63 (95% CI: 0.35-1.14) and 0.74 (95% CI: 0.41-1.32). CONCLUSIONS: Our results support the hypothesis that certain foods high in phytoestrogens are associated with a lower risk of prostate cancer.
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| 2. |
- Wilson, Kathryn M., et al.
(författare)
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Coffee and risk of prostate cancer incidence and mortality in the Cancer of the Prostate in Sweden Study
- 2013
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Ingår i: Cancer Causes and Control. - : Springer. - 0957-5243 .- 1573-7225. ; 24:8, s. 1575-1581
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Tidskriftsartikel (refereegranskat)abstract
- Coffee intake has recently been associated with significantly lower risk of lethal and advanced prostate cancer in a US population. We studied the association between coffee and prostate cancer risk in the population-based case-control study Cancer of the Prostate in Sweden. Dietary data were available for 1,499 cases and 1,112 controls. We calculated odds ratios (ORs) for the risk of prostate cancer in high versus low categories of coffee intake using logistic regression. We studied overall prostate cancer risk as well as risk of fatal, advanced, localized, high-grade, grade 7, and low-grade disease. Mean coffee intake was 3.1 cups per day among both cases and controls. Coffee intake was not associated with overall prostate cancer risk. Risk of fatal prostate cancer was inversely, but not statistically significantly, associated with coffee intake, with an odds ratio of 0.64 [95 % confidence interval (CI) 0.34-1.19, p value for linear trend = 0.81] for men consuming greater than 5 cups per day compared to men drinking less than 1 cup per day. The highest intake of coffee was associated non-significantly with lower risk of advanced disease (OR = 0.73, 95 % CI 0.41-1.30, p trend = 0.98) and associated significantly with lower risk of high-grade cancer (Gleason 8-10; OR = 0.50, 95 % CI 0.26-0.98, p trend = 0.13). Risk of localized, grade 7, and low-grade cancers was not associated with coffee intake. This study provides some support of an inverse association between coffee and lethal and high-grade prostate cancer.
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