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KMID : 0358320080490050411
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Korean Journal of Urology
2008 Volume.49 No. 5 p.411 ~ p.417
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Factors Influencing the Prostate-specific Antigen Levels after Adjusting Age and Prostate Volume in Korean Men
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Koh Jae-I
Yang Won-Jae
Song Yun-Seob
Park Young-Ho
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Abstract
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Purpose: We investigated the influence of the anthropometric and serological parameters on the prostate-specific antigen(PSA) levels after adjusting for age and the prostate volume in Korean men who visited a health promotion center.
Materials and Methods: From January 2004 to July 2007, among the 18,352 men(age range: 30 to 79) who visited our health promotion center for general check-ups, 1,230(14.9%) men who wanted their prostate evaluated were included in this study. Thereafter, 151 men whose PSA level was over 4.0ng/ml, or their urinalysis revealed pyuria(＞5 white blood cells (WBCs)/high power fields(HPF)) were excluded. The data of the remained 1,079 men was then analyzed. All the men underwent transrectal ultrasonography, detailed anthropometric measurements and serological tests. The correlation of the PSA level with the various anthropometric and serological parameters was investigated.
Results: On the univariate analysis after adjusting for age and the prostate volume, the PSA level showed statistically significant positive correlation with the WBC, the red blood cell(RBC) and platelet(PLT) counts/?l, and the PSA level was negatively correlated with height, weight, the body surface area(BSA), the body mass index(BMI), ?-glutamyltransferase (GGT), and creatinine clearance(Ccr). On multivariate analysis, age, the prostate volume and the RBC/PLT counts/?l were positively correlated with the PSA level, and the BSA was negatively correlated with the PSA levels, whereas the BMI was not.
Conclusions: Irrespective of age, the prostate volume and the BSA were the independent factor influencing the PSA level, that is, the larger the BSA, the lower the PSA.
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KEYWORD
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Prostate-specific antigen, Body surface area, Body mass index
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