期刊
CANCER CAUSES & CONTROL
卷 24, 期 3, 页码 549-557出版社
SPRINGER
DOI: 10.1007/s10552-012-9992-z
关键词
Flavonoids; Lignans; Colorectal cancer; Case-control study
资金
- Spanish Instituto de Salud Carlos III [RTICCC RD06/0020, CIBERESP CB07/02/2005, PI08-1359, PI08-1635, PS09-1037]
- Spanish Association Against Cancer (AECC) Scientific Foundation
- Catalan Government DURSI grant [2009SGR1489]
- European Commission [FOOD-CT-2006-036224-HIWATE, FP7-COOP-Health-2007-B HiPerDART]
- MEC [CD09/00133]
Flavonoid-rich foods, such as fruits, vegetables, and tea, may have a protective effect upon colorectal cancer. However, current epidemiological evidence for a protective effect of flavonoid intake upon colorectal cancer is promising but not conclusive. To examine the relation between dietary flavonoid and lignan intakes and the risk of colorectal cancer within a Spanish population. Data from the Bellvitge Colorectal Cancer Study, a case-control study (424 cases with incident colorectal cancer and 401 hospital-based controls), were used. A reproducible and validated food frequency questionnaire was administered in personal interviews. An ad hoc food composition database on flavonoids and lignans was compiled, mainly using data from the US Department of Agriculture and Phenol-Explorer databases. Adjusted odds ratios (ORs) and 95 % confidence intervals (CIs) were estimated using unconditional logistic regression models. An inverse association was found between intake of total flavonoids (OR, 0.59; 95 % CI, 0.35-0.99 for the highest vs. the lowest quartile; p for trend = 0.04), lignans (OR, 0.59; 95 % CI, 0.34-0.99; p for trend = 0.03), and some individual flavonoid subgroups (flavones, proanthocyanidins) and the risk of colorectal cancer. Separate analyses by cancer site showed similar results. Intake of total dietary flavonoids (particularly certain flavonoid subgroups) and lignans was inversely associated with colorectal cancer risk in a Spanish population.
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