Initial biopsy outcome prediction in Korean patients-comparison of a novel web-based Korean prostate cancer risk calculator versus prostate-specific antigen testing

Jae Young Park, Sungroh Yoon, Man Sik Park, Dae Yeon Cho, Hong Seok Park, Du Geon Moon, Duck Ki Yoon

    Research output: Contribution to journalArticlepeer-review

    11 Citations (Scopus)

    Abstract

    We developed and validated a novel Korean prostate cancer risk calculator (KPCRC) for predicting the probability of a positive initial prostate biopsy in a Korean population. Data were collected from 602 Koreans who underwent initial prostate biopsies due to an increased level of prostate-specific antigen (PSA), a palpable nodule upon digital rectal examination (DRE), or a hypoechoic lesion upon transrectal ultrasound (TRUS). The clinical and laboratory variables were analyzed by simple and multiple logistic regression analysis. The area under the receiver operating characteristic curve (AUC) was computed to compare its performance to PSA testing alone. Prostate cancer was detected in 172 (28.6%) men. Independent predictors included age, DRE findings, PSA level, and prostate transitional zone volume. We developed the KPCRC using these variables. The AUC for the selected model was 0.91, and that of PSA testing alone was 0.83 (P < 0.001). The AUC for the selected model with an additional dataset was 0.79, and that of PSA testing alone was 0.73 (P = 0.004). The calculator is available on the website: http://pcrc.korea.ac.kr. The KPCRC improved the performance of PSA testing alone in predicting the risk of prostate cancer in a Korean population. This calculator would be a practical tool for physicians and patients.

    Original languageEnglish
    Pages (from-to)85-91
    Number of pages7
    JournalJournal of Korean medical science
    Volume26
    Issue number1
    DOIs
    Publication statusPublished - 2011 Jan

    Keywords

    • Asian continental ancestry group
    • Biopsy
    • Forecasting
    • Prostate neoplasms

    ASJC Scopus subject areas

    • Medicine(all)

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