You have accessJournal of UrologyProstate Cancer: Detection & Screening (III)1 Apr 20131941 5 α REDUCTASE INHIBITORS AND RISK OF PROSTATE CANCER. NATION-WIDE, POPULATION-BASED CASE-CONTROL STUDY David Robinson, Hans Garmo, Anna Bill-Axelson, Lorelei Lorelei, Lars Holmberg, and Pär Stattin David RobinsonDavid Robinson Umeå, Sweden More articles by this author , Hans GarmoHans Garmo London, United Kingdom More articles by this author , Anna Bill-AxelsonAnna Bill-Axelson Uppsala, Sweden More articles by this author , Lorelei LoreleiLorelei Lorelei Boston, MA More articles by this author , Lars HolmbergLars Holmberg Uppsala, Sweden More articles by this author , and Pär StattinPär Stattin Umeå, Sweden More articles by this author View All Author Informationhttps://doi.org/10.1016/j.juro.2013.02.2360AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookTwitterLinked InEmail INTRODUCTION AND OBJECTIVES Results from two randomized clinical trials have raised concern about an increased risk of high grade prostate cancer in men on 5 α-reductase inhibitors (5-ARI). We assessed the association between 5-ARI use in men with lower urinary tract symptoms (LUTS) and prostate cancer risk. METHODS A case-control study for men diagnosed with prostate cancer 2007 to 2009 within Prostate Cancer data Base Sweden (PCBaSe) 2.0. was performed. Information from The National Prostate Cancer Register, The Patient Register, The Census, and The Prescribed Drug Register in Sweden with data on 5-ARI use prior to date of diagnosis. Cases and five controls per case randomly selected from matched men in the background population, in total 26 735 cases and 133 671 matched controls were included.Odds ratios (OR) of prostate cancer and 95% confidence intervals (95% CI) from conditional logistic regression analyses were retrived. RESULTS A total of 1499 men had been exposed to 5-ARI prior to prostate cancer diagnosis, 412 of these men had a prostate cancer with a Gleason score 8-10. There was a steady decrease in risk of prostate cancer overall for an increasing duration of exposure, down to OR 0.72 (95% CI 0.59-0.89) ptrend <0.0001, in men on 5-ARI for more than three years. This decrease was strongest for Gleason score 2–6 cancers down to OR 0.27 (95% CI 0.15-0.48) ptrend <0.0001 whereas OR for Gleason score 7 tumors was 0.79 (95% CI 0.57-1.10) ptrend=0.0004. In contrast, the risk of Gleason score 8-10 tumors did not decrease with increasing exposure time, OR 0.96 (95% CI=0.83-1.11) for 0-1 year of exposure, OR 1.07 (95% CI=0.88-1.31) for 1–2 years, OR 0.96 (95% CI=0.72–1.27) for 2–3 years and OR 1.23 (95% CI=0.90-1.68) for more than 3 years of exposure, ptrend = 0.46. CONCLUSIONS Men treated with 5-ARI for LUTS had a decreased risk of Gleason score 2–7, and no evidence of an increased risk of Gleason score 8-10 prostate cancer. © 2013 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 189Issue 4SApril 2013Page: e795-e796 Advertisement Copyright & Permissions© 2013 by American Urological Association Education and Research, Inc.MetricsAuthor Information David Robinson Umeå, Sweden More articles by this author Hans Garmo London, United Kingdom More articles by this author Anna Bill-Axelson Uppsala, Sweden More articles by this author Lorelei Lorelei Boston, MA More articles by this author Lars Holmberg Uppsala, Sweden More articles by this author Pär Stattin Umeå, Sweden More articles by this author Expand All Advertisement Advertisement PDF downloadLoading ...
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