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Title: Age-dependent associations between androgenetic alopecia and prostate cancer risk.
Epworth Authors: Sinclair, Rodney
Other Authors: Giles, Graham
Muller, David
Hopper, John
English, Dallas
Severi, Gianluca
Keywords: Victorian Cancer Registry
Androgenetic Alopecia
Alopecia, Androgenetic
Prostatic Cancer
Cancer of the Prostate
Neoplasms, Prostate
Melbourne Collaborative Cohort Study
Australian Cancer Database
Australian Institute of Health and Welfare (AIHW)
Neoplasm Grading
National Death Index
Chair of Dermatology, Epworth HealthCare
Department of Dermatology, Epworth Hospital, Richmond, Victoria, Australia
Issue Date: Feb-2013
Publisher: American Association for Cancer Research
Citation: Cancer Epidemiol Biomarkers Prev. 2013 Feb;22(2):209-15
Abstract: BACKGROUND: Both prostate cancer and androgenetic alopecia are strongly age-related conditions that are considered to be androgen dependent, but studies of the relationship between them have yielded inconsistent results. We aimed to assess whether androgenetic alopecia at ages 20 and 40 years are associated with risk of prostate cancer. METHODS: At a follow-up of the Melbourne Collaborative Cohort Study, men were asked to assess their hair pattern at ages 20 and 40 years relative to eight categories in showcards. Cases were men notified to the Victorian Cancer Registry with prostate cancer diagnosed between cohort enrollment (1990-1994) and follow-up attendance (2003-2009). Flexible parametric survival models were used to estimate age-varying HRs and predicted cumulative probabilities of prostate cancer by androgenetic alopecia categories. RESULTS: Of 9,448 men that attended follow-up and provided data on androgenetic alopecia, we identified 476 prostate cancer cases during a median follow-up of 11 years four months. Cumulative probability of prostate cancer was greater at all ages up to 76 years, for men with vertex versus no androgenetic alopecia at age of 40 years. At age of 76 years, the estimated probabilities converged to 0.15. Vertex androgenetic alopecia at 40 years was also associated with younger age of diagnosis for prostate cancer cases. CONCLUSIONS: Vertex androgenetic alopecia at age of 40 years might be a marker of increased risk of early-onset prostate cancer. IMPACT: If confirmed, these results suggest that the apparently conflicting findings of previous studies might be explained by failure to adequately model the age-varying nature of the association between androgenetic alopecia and prostate cancer.
DOI: 10.1158/1055-9965.EPI-12-0860
ORCID: 0000-0003-4946-9099
PubMed URL:
ISSN: 1055-9965
Journal Title: Cancer Epidemiology Biomarkers & Prevention
Type: Journal Article
Affiliated Organisations: Cancer Epidemiology Centre, Cancer Council of Victoria, Melbourne, Victoria, Australia.
Centre for Molecular, Environmental, Genetic, and Analytic Epidemiology, Melbourne, Victoria, Australia.
Faculty of Medicine, The University of Melbourne, Melbourne, Victoria, Australia.
Dermatology, St Vincent's Hospital, Melbourne, Victoria, Australia.
Type of Clinical Study or Trial: Prospective Cohort Study
Appears in Collections:Cancer Services
Epworth Prostate Centre
Head & Neck
UroRenal, Vascular

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