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Dietary cadmium exposure and prostate cancer incidence : a population-based prospective cohort study
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- Julin, B. (author)
- Karolinska Institutet
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- Wolk, A. (author)
- Karolinska Institutet
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- Johansson, Jan-Erik (author)
- Örebro universitet,Institutionen för hälsovetenskap och medicin,Univ Orebro, Sch Hlth & Med Sci, S-70185 Orebro, Sweden.;Orebro Univ Hosp, Dept Urol, S-70185 Orebro, Sweden.
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- (creator_code:org_t)
- 2012-07-31
- 2012
- English.
- In: British Journal of Cancer. - London, United Kingdom : Nature Publishing Group. - 0007-0920 .- 1532-1827. ; 21:5, s. 895-900
- Journal article (peer-reviewed)
Abstract
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- Background: Experimental data convincingly propose the toxic metal cadmium as a prostate carcinogen. Cadmium is widely dispersed into the environment and, consequently, food is contaminated.Methods: A population-based cohort of 41 089 Swedish men aged 45-79 years was followed prospectively from 1998 through 2009 to assess the association between food frequency questionnaire-based estimates of dietary cadmium exposure (at baseline, 1998) and incidence of prostate cancer (3085 cases, of which 894 were localised and 794 advanced) and through 2008 for prostate cancer mortality (326 fatal cases).Results: Mean dietary cadmium exposure was 19 μg per day±s.d. 3.7. Multivariable-adjusted dietary cadmium exposure was positively associated with overall prostate cancer, comparing extreme tertiles; rate ratio (RR) 1.13 (95% confidence interval (CI): 1.03-1.24). For subtypes of prostate cancer, the RR was 1.29 (95% CI: 1.08-1.53) for localised, 1.05 (95% CI: 0.87-1.25) for advanced, and 1.14 (95% CI: 0.86-1.51) for fatal cases. No statistically significant difference was observed in the multivariable-adjusted risk estimates between tumour subtypes (P(heterogeneity)=0.27). For localised prostate cancer, RR was 1.55 (1.16-2.08) among men with a small waist circumference and RR 1.45 (1.15, 1.83) among ever smokers.Conclusion: Our findings provide support that dietary cadmium exposure may have a role in prostate cancer development.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Cancer och onkologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cancer and Oncology (hsv//eng)
Keyword
- Dietary cadmium
- epidemiology
- prospective cohort
- prostate cancer
- subtypes
- Medicin
- Medicine
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- ref (subject category)
- art (subject category)
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