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04-03-2014 | Genitourinary cancers | Article

Prostate cancer in Asian men

Author:
Kazuto Ito

Abstract

Prostate cancer incidence and mortality in most native Asian populations have gradually increased, but are around one-third lower than in corresponding Asian–American cohorts, which are themselves lower than the rates observed in other American cohorts. Although genetic and environmental factors, particularly a Western diet, could partially explain these differences, lower exposure to PSA screening in Asian individuals might be a major contributing factor. Genetic features and diet are, however, unlikely to differ substantially within the same region of Asia, and age-stratified PSA levels in men from various Asian countries are almost identical; therefore, variation in the epidemiology of prostate cancer among native Asian populations might be attributable to differences in access to PSA testing, urology clinics, and available therapies. Conversely, the proportion of patients with metastatic prostate cancer is substantially higher even in the more developed Asian countries than in migratory Asian populations residing in Western countries and in Westerners. Consequently, the most appropriate approaches to the management of prostate cancer in Asian countries probably also differ, and therefore individualized prostate cancer screening and treatment strategies based on the epidemiological features and socioeconomic status of each country are needed.

Nat Rev Urol 2014; 11: 197–212. doi:10.1038/nrurol.2014.42

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