We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Impact of age, benign prostatic hyperplasia, and cancer on prostate‐specific antigen levelPresented in part at the American Society for Clinical Oncology, Orlando, Florida, May 18‐21, 2005.
- Authors
Rinaa S. Punglia; Anthony V. D'Amico; William J. Catalona; Kimberly A. Roehl; Karen M. Kuntz
- Abstract
The distribution of prostate‐specific antigen (PSA) values for men with or without prostate carcinoma are confounded because of verification bias. Correcting for verification bias, the means and variances of PSA values were estimated in specific clinical scenarios.Existing receiver operating characteristic (ROC) curves, adjusted for the presence of verification bias in a screening population, were used to estimate the mean and variance of PSA values for men with or without prostate carcinoma, stratified by age and the presence or absence of benign prostatic hyperplasia. Men with a suspicious digital rectal exam (nodular) were excluded from analysis.Among men with cancer and the absence of benign prostatic hyperplasia, mean PSA values were 2.05 ng/mL and 2.66 ng/mL for younger (<60 yr) and older (≥60 yrs) men, respectively. These estimates were 2.56 ng/mL and 3.90 ng/mL in the presence of benign prostatic hyperplasia for younger and older men, respectively. For men without prostate carcinoma, these values were 0.78 ng/mL and 1.23 ng/mL for younger and older men, respectively, among those without benign prostatic hyperplasia, and 0.97 ng/mL and 1.75 ng/mL for younger and older men, respectively, among those with benign prostatic hyperplasia.Accurate estimates of the mean and variance of PSA values for men with or without cancer may provide PSA thresholds for biopsy that are specific for age and prostate size as assessed by digital rectal exam. Therefore, the current threshold of 4.0 ng/mL should not be applied indiscriminately. Cancer 2006. © 2006 American Cancer Society.
- Subjects
PROSTATE-specific antigen; PROSTATE cancer; CANCER patients; HYPERPLASIA; BIOPSY; CLINICAL pathology
- Publication
Cancer (0008543X), 2006, Vol 106, Issue 7, p1507
- ISSN
0008-543X
- Publication type
Article