Androgenetic alopecia in men aged 40-69 years: Prevalence and risk factors

Abstract

Background: The epidemiology of androgenetic alopecia (AGA) is not fully understood. Although a strong genetic basis has long been identified, little is known of its non-genetic causes. Objectives: To estimate the prevalence of and to determine risk factors for AGA in men aged 40-69 years in Australia. Methods: Men (n = 1390) were recruited at random from the electoral rolls to serve as controls in a population-based case-control study of prostate cancer. All were interviewed in person and direct observations of AGA were made. Men were grouped into the following categories; no AGA, frontal AGA, vertex AGA and full AGA (frontal and vertex AGA). Epidemiological data collected from these men we..