Age-specific reference range of prostate-specific antigen and prostate cancer detection in population-based screening cohort in Japan: Verification of Japanese Urological Association Guideline for prostate cancer

Autor:	Kiyoshi Koshida, Kimiomi Miyazaki, Takao Nakashima, Kazuyoshi Nakashima, Kiyoshi Sawada, Yasuhide Kitagawa, Kouji Izumi, Atsushi Mizokami, Mikio Namiki
Rok vydání:	2014
Předmět:	Oncology Gynecology medicine.medical_specialty business.industry Urology Cancer Reference range Guideline medicine.disease Prostate cancer Prostate-specific antigen medicine.anatomical_structure Antigen Prostate Internal medicine Cohort medicine business
Zdroj:	International Journal of Urology. 21:1120-1125
ISSN:	0919-8172
DOI:	10.1111/iju.12523
Popis:	Objectives To investigate the age-specific reference range of prostate-specific antigen and clinical characteristics of screening-detected cancer in prostate-specific antigen-based screening, and to verify the age-specific prostate-specific antigen cut-offs in the Japanese Urological Association Guidelines. Methods Prostate-specific antigen distributions were estimated in a total of 69 028 screening tests according to the age of the participants in population screening from 2000 to 2013. The age-specific reference range of prostate-specific antigen for detection of cancer was investigated by analyzing the receiver operating characteristic curves. Furthermore, the clinicopathological features of screening-detected cancer with serum prostate-specific antigen levels below the age-specific prostate-specific antigen cut-off in the Japanese Urological Association Guidelines were also investigated. Results Of all 69 028 screens, 2053 prostate biopsies (2.97%) were carried out and 549 cases of cancer (0.79%) were diagnosed. The 95th percentiles in all participants aged 54–59, 60–64, 65–69 and 70–75 years old were 2.90, 3.60, 4.10, and 4.70 ng/mL, respectively. The optimal prostate-specific antigen cut-offs for cancer detection determined from the receiver operating characteristic curves were 2.3 and 2.6 for the age ranges 54–69 and 70–75 years, respectively. These values were lower than the age-specific cut-offs in the Japanese Urological Association Guidelines. Of all 137 patients with prostate-specific antigen levels below the age-specific cut-offs in the Japanese Urological Association Guidelines, 80 (58.4%) had unfavorable clinicopathological features as active surveillance criteria. Conclusions The age-specific reference range of prostate-specific antigen might be lower than that recommended in the Japanese Urological Association Guidelines. An individualized and natural history-adjusted screening system should be established for screening participants with low prostate-specific antigen level.
Databáze:	OpenAIRE
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