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The role of human glandular kallikrein 2 for prediction of pathologically organ confined prostate cancer

The role of human glandular kallikrein 2 for prediction of pathologically organ confined prostate... Background In recent studies serum levels of human glandular kallikrein 2 (hK2) demonstrated significant differences in pathologically organ‐confined versus non‐organ‐confined prostate cancer (PCa). In this study we investigated whether hK2 adds independent information when considered together with traditionally used parameters to predict organ confined (pT2a/b) PCa. Methods Serum levels of hK2, total and free prostate‐specific antigens (PSA) were obtained one day before radical prostatectomy in 245 consecutive men. These were included with clinical stage and biopsy Gleason grade into univariate analysis and multivariate logistic regression models. Results pT2a/b PCa was found in n = 148 patients. In univariate analysis all preoperative parameters demonstrated significant association with the presence of pT2a/b PCa. Using multivariate logistic regression model hK2 (P = 0.022), clinical stage (P < 0.0001), and Gleason grade (P < 0.0001) were independent predictors of pT2a/b PCa whereas PSA (P = 0.3) was not. In bootstrap corrected logistic regression based nomograms the addition of hK2 density marginally enhanced predictive accuracy when PSA, PSA density, clinical stage, and Gleason grade were considered (AUC = 0.879 without hK2 density and 0.883 with hK2 density). Conclusions hK2 and hK2 density could independently predict pT2a/b PCa. However, improvement in predictive accuracy was marginal when nomograms based on traditional variables were complemented with this serum marker. Prostate 54: 181–186, 2003. © 2002 Wiley‐Liss, Inc. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The Prostate Wiley

The role of human glandular kallikrein 2 for prediction of pathologically organ confined prostate cancer

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References (16)

Publisher
Wiley
Copyright
Copyright © 2003 Wiley‐Liss, Inc.
ISSN
0270-4137
eISSN
1097-0045
DOI
10.1002/pros.10180
pmid
12518322
Publisher site
See Article on Publisher Site

Abstract

Background In recent studies serum levels of human glandular kallikrein 2 (hK2) demonstrated significant differences in pathologically organ‐confined versus non‐organ‐confined prostate cancer (PCa). In this study we investigated whether hK2 adds independent information when considered together with traditionally used parameters to predict organ confined (pT2a/b) PCa. Methods Serum levels of hK2, total and free prostate‐specific antigens (PSA) were obtained one day before radical prostatectomy in 245 consecutive men. These were included with clinical stage and biopsy Gleason grade into univariate analysis and multivariate logistic regression models. Results pT2a/b PCa was found in n = 148 patients. In univariate analysis all preoperative parameters demonstrated significant association with the presence of pT2a/b PCa. Using multivariate logistic regression model hK2 (P = 0.022), clinical stage (P < 0.0001), and Gleason grade (P < 0.0001) were independent predictors of pT2a/b PCa whereas PSA (P = 0.3) was not. In bootstrap corrected logistic regression based nomograms the addition of hK2 density marginally enhanced predictive accuracy when PSA, PSA density, clinical stage, and Gleason grade were considered (AUC = 0.879 without hK2 density and 0.883 with hK2 density). Conclusions hK2 and hK2 density could independently predict pT2a/b PCa. However, improvement in predictive accuracy was marginal when nomograms based on traditional variables were complemented with this serum marker. Prostate 54: 181–186, 2003. © 2002 Wiley‐Liss, Inc.

Journal

The Prostate – Wiley

Published: Feb 15, 2003

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