Journal Article

Statins and Prostate Cancer Risk: A Case-Control Study

Jackilen Shannon, Selome Tewoderos, Mark Garzotto, Tomasz M. Beer, Rhianna Derenick, Amy Palma and Paige E. Farris

in American Journal of Epidemiology

Published on behalf of Johns Hopkins Bloomberg School of Public Health

Volume 162, issue 4, pages 318-325
Published in print August 2005 | ISSN: 0002-9262
Published online August 2005 | e-ISSN: 1476-6256 | DOI: http://dx.doi.org/10.1093/aje/kwi203
Statins and Prostate Cancer Risk: A Case-Control Study

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Observational studies have shown that 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitor (statin) use may be associated with reduced cancer risk. The purpose of this case-control study was to elucidate the association between statin use and prostate cancer risk. Prostate cancer cases (n = 100), recruited upon referral for prostate biopsy, and frequency age-matched, prostate-specific antigen-normal clinic controls (n = 202) were recruited from the Portland, Oregon, Veterans Affairs Medical Center. Information on any use of statins from May 1997 through August 2004 was obtained from an electronic pharmacy database. Days of use, type of statin, dose, and prescription changes were recorded. Duration and intensity were calculated for each statin type on the basis of days of use and prescribed dose. Thirty-six percent of cases and 49 percent of controls had a record of any statin use. Following adjustment for other potential risk factors, statin use was associated with a significant reduction in prostate cancer risk (odds ratio = 0.38, 95% confidence interval: 0.21, 0.69). Furthermore, in analyses stratified by Gleason score, the inverse association with statin use was maintained only among men with Gleason scores of ≥7 (odds ratio = 0.24, 95% confidence interval: 0.11, 0.53). The results of this case-control study suggest that statins may reduce the risk of total prostate cancer and, specifically, more aggressive prostate cancer.

Keywords: case-control studies; cholesterol; hydroxymethylglutaryl-CoA reductase inhibitors; mevalonic acid; prostate-specific antigen; prostatic neoplasms; veterans; CI, confidence interval; FPP, farnesylpyrophosphate; GGPP, geranylgeranyl pyrophosphate; NSAID, nonsteroidal antiinflammatory drug; OR, odds ratio; p21, Mr 21,000 protein (p27 defined similarly); PVAMC, Portland Veterans Affairs Medical Center; VA, Veterans Affairs

Journal Article.  5209 words. 

Subjects: Public Health and Epidemiology

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