TY - JOUR
T1 - Flavonoids and bladder cancer risk
AU - Rossi, Marta
AU - Strikoudi, Panagiota
AU - Spei, Maria Eleni
AU - Parpinel, Maria
AU - Serraino, Diego
AU - Montella, Maurizio
AU - Libra, Massimo
AU - La Vecchia, Carlo
AU - Rosato, Valentina
PY - 2019/1/1
Y1 - 2019/1/1
N2 - Purpose: Flavonoids have drawn attention because of their antioxidant capacity and anti-carcinogenic effect in various types of cancer. A limited number of studies has investigated their potential effect on the risk of bladder cancer, with inconsistent results. Methods: We analyzed data from an Italian case–control study including 690 incident bladder cancer cases and 665 controls admitted to the same network of hospitals for acute, non-neoplastic, non tobacco-related diseases. Subjects were interviewed using a reproducible and validated food-frequency questionnaire. We applied data on food and beverage composition to estimate the intake of isoflavones, anthocyanidins, flavan-3-ols, flavanones, flavones and flavonols. We estimated odds ratios (ORs) through multiple logistic regression models, including terms for potential confounding factors, including tobacco smoking and total energy intake. Results: We found an inverse association between isoflavones (OR for the highest compared to the lowest quintile of intake = 0.56, 95% CI 0.37–0.84) and flavones (OR = 0.64, 95% CI 0.44–0.95) and bladder cancer. Non-significant inverse association was found for flavan-3-ols (OR = 0.70), flavonols (OR = 0.85) and total flavonoids (OR = 0.76). The results were consistent for non-muscle-invasive and muscle-invasive bladder cancers. Conclusions: Our data indicate an inverse association between isoflavones and flavones with respect to bladder cancer risk.
AB - Purpose: Flavonoids have drawn attention because of their antioxidant capacity and anti-carcinogenic effect in various types of cancer. A limited number of studies has investigated their potential effect on the risk of bladder cancer, with inconsistent results. Methods: We analyzed data from an Italian case–control study including 690 incident bladder cancer cases and 665 controls admitted to the same network of hospitals for acute, non-neoplastic, non tobacco-related diseases. Subjects were interviewed using a reproducible and validated food-frequency questionnaire. We applied data on food and beverage composition to estimate the intake of isoflavones, anthocyanidins, flavan-3-ols, flavanones, flavones and flavonols. We estimated odds ratios (ORs) through multiple logistic regression models, including terms for potential confounding factors, including tobacco smoking and total energy intake. Results: We found an inverse association between isoflavones (OR for the highest compared to the lowest quintile of intake = 0.56, 95% CI 0.37–0.84) and flavones (OR = 0.64, 95% CI 0.44–0.95) and bladder cancer. Non-significant inverse association was found for flavan-3-ols (OR = 0.70), flavonols (OR = 0.85) and total flavonoids (OR = 0.76). The results were consistent for non-muscle-invasive and muscle-invasive bladder cancers. Conclusions: Our data indicate an inverse association between isoflavones and flavones with respect to bladder cancer risk.
KW - Bladder cancer
KW - Case–control study
KW - Flavonoids
KW - Risk factors
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U2 - 10.1007/s10552-019-01158-2
DO - 10.1007/s10552-019-01158-2
M3 - Article
C2 - 30903485
AN - SCOPUS:85064157312
JO - Cancer Causes and Control
JF - Cancer Causes and Control
SN - 0957-5243
ER -