title: Parkinson's disease and risk of prostate cancer: A Danish population-based case-control study, 1995-2010.
abstract: Prostate cancer growth and progression may be linked to neurogenesis and to medical anti- Parkinson treatment, but results are inconclusive. Therefore, we examined the association between Parkinson's disease and risk of prostate cancer in a population based case-control study.
  
  
  
  We identified 45,429 patients diagnosed with incident prostate cancer during 1997-2010 from the National Cancer Registry. Five age-matched population controls (n=227,145) were selected for each case. Odds ratios (ORs) adjusted for age and comorbidity for prostate cancer associated with Parkinson's disease were computed using conditional logistic regression. Analyses were stratified by duration of Parkinson's disease and stage of prostate cancer (localized and advanced).
  
  
  
  In total, 245 patients (0,5%) and 1656 controls (0,7%) had Parkinson's disease. Overall, patients with Parkinson's disease had a 27% lower risk of prostate cancer compared with patients without Parkinson's disease (adjusted OR (ORa) 0.73; 95% confidence interval (CI), 0.63-0.83). Risk of prostate cancer decreased with increasing duration of Parkinson's disease. The odds ratios were slightly lower for advanced prostate cancer (ORa, 0.68; 95% CI, 0.52-0.88) than for localized prostate cancer (ORa 0.76; 95% CI, 0.61-0.93).
  
  
  
  Parkinson's disease was associated with a risk reduction overall (27%), which decreased with increasing duration of Parkinson's disease.
authors.affiliation: Department of Urology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200 Aarhus N, Denmark; Department of Urology, Viborg Hospital, Heibergs Alle 4, 8800 Viborg, Denmark. Electronic address: chrijesp@rm.dk.
authors.forename: Christina G
authors.initials: CG
authors.lastname: Jespersen
authors.affiliation: Department of Clinical Epidemiology, Aarhus University Hospital, Olof Palmes Allé 43-45, 8200 Aarhus N, Denmark.
authors.forename: Mette
authors.initials: M
authors.lastname: Nørgaard
authors.affiliation: Department of Urology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200 Aarhus N, Denmark.
authors.forename: Michael
authors.initials: M
authors.lastname: Borre
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016022:Case-Control Studies; D015897:Comorbidity; D003718:Denmark / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D016017:Odds Ratio; D010300:Parkinson Disease / Q000150:complications*; D011471:Prostatic Neoplasms / Q000453:epidemiology* / Q000209:etiology*; D012307:Risk Factors; D013997:Time Factors
keywords: Case-control study; Epidemiology; Odds ratio; Parkinson’s disease; Population based; Prostatic neoplasm