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Dietary folate inta...
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Larsson, S CKarolinska Institutet
(author)
Dietary folate intake and incidence of ovarian cancer : The Swedish Mammography Cohort
- Article/chapterEnglish2004
Publisher, publication year, extent ...
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2004-03-02
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Karolinska Inst, Natl Inst Environm Med, Div Nutr Epidemiol, SE-17177 Stockholm, Sweden. Harvard Univ, Sch Med, Boston, MA USA. Brigham & Womens Hosp, Dept Med, Channing Lab, Boston, MA USA. Harvard Univ, Sch Publ Hlth, Dept Nutr, Boston, MA 02115 USA. Harvard Univ, Sch Publ Hlth, Dept Epidemiol, Boston, MA 02115 USA.OXFORD UNIV PRESS INC,2004
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Numbers
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LIBRIS-ID:oai:DiVA.org:uu-422177
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-422177URI
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https://doi.org/10.1093/jnci/djh061DOI
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http://kipublications.ki.se/Default.aspx?queryparsed=id:1961512URI
Supplementary language notes
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Language:English
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Summary in:English
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Classification
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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Background: Mounting evidence suggests that a low intake of the water-soluble B vitamin folate is associated with breast and colorectal carcinogenesis, especially among alcohol drinkers. However, epidemiologic data specifically linking folate intake to ovarian cancer risk are limited. Methods: We examined the association between dietary folate intake (i.e., folate from food sources) and the incidence of total epithelial ovarian cancer and its subtypes by analyzing data from the Swedish Mammography Cohort, a population-based prospective cohort of 61084 women, aged 38-76 years, who, at baseline (i.e., from 1987 to 1990), were cancer-free and had completed a food-frequency questionnaire. Through June 30, 2003, 266 incident cases of invasive epithelial ovarian cancer were diagnosed. We used Cox proportional hazards models to estimate multivariable relative risks (RRs) of ovarian cancer with 95% confidence intervals (CIs). All statistical tests were two-sided. Results: Overall, dietary folate intake was weakly inversely associated with total epithelial ovarian cancer risk (RR for highest versus lowest quartile of intake = 0.67, 95% CI = 0.43 to 1.04; P-trend =.08). Among women who consumed more than 20 g of alcohol (approximately two drinks) per week, there was a strong inverse association between dietary folate intake and total epithelial ovarian cancer risk (RR for highest versus lowest quartile of intake = 0.26, 95% CI = 0.11 to 0.60; P-trend = .001), but among women who consumed 20 g or less of alcohol per week, there was no such association (RR for highest versus lowest quartile of intake = 1.00, 95% CI = 0.59 to 1.70; P-trend = .80). The absolute risk of epithelial ovarian cancer for the lowest three quartiles versus the highest quartile of folate intake was 8 per 100 000 personyears (95% CI = 0 to 16 per 100000 person-years) overall and 26 per 100 000 person-years (95% CI = 10 to 42 per 100 000 person-years) among those who consumed more than 20 g of alcohol per week. The association between dietary folate intake and cancer risk did not vary substantially among subtypes of epithelial ovarian cancer. Conclusion: A high dietary folate intake may play a role in reducing the risk of ovarian cancer, especially among women who consume alcohol.
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Giovannucci, E
(author)
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Wolk, AKarolinska Institutet
(author)
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Karolinska Institutet
(creator_code:org_t)
Related titles
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In:Journal of the National Cancer InstituteKarolinska Inst, Natl Inst Environm Med, Div Nutr Epidemiol, SE-17177 Stockholm, Sweden. Harvard Univ, Sch Med, Boston, MA USA. Brigham & Womens Hosp, Dept Med, Channing Lab, Boston, MA USA. Harvard Univ, Sch Publ Hlth, Dept Nutr, Boston, MA 02115 USA. Harvard Univ, Sch Publ Hlth, Dept Epidemiol, Boston, MA 02115 USA. : OXFORD UNIV PRESS INC96:5, s. 396-4020027-88741460-2105
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