Long-term dietary sodium, potassium and fluid intake; exploring potential novel risk factors for renal cell cancer in the Netherlands Cohort Study on diet and cancer

I.A.G. Deckers*, P.A. van den Brandt, M. van Engeland, P.M.M.B. Soetekouw, M.M.L.L. Baldewijns, R.A. Goldbohm, L.J. Schouten

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Background: As sodium, potassium and fluid intake are related to hypertension, an established risk factor for renal cell cancer (RCC), they may be independent risk factors for RCC. Methods: The Netherlands Cohort Study (NLCS) with case-cohort design included 120 852 participants aged 55-69 years. At baseline, diet and lifestyle were assessed with questionnaires. After 17.3 years of follow-up, 485 RCC cases and 4438 subcohort members were available for analyses. Results: Sodium intake increased RCC risk (P-trend = 0.03), whereas fluid and potassium intake did not. For high sodium and low fluid intake, the RCC risk additionally increased (P-interaction = 0.02). Conclusion: Sodium intake is a potential risk factor for RCC, particularly if fluid consumption is low.
Original languageEnglish
Pages (from-to)797-801
JournalBritish Journal of Cancer
Volume110
DOIs
Publication statusPublished - 1 Jan 2014

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