Comparison of prostate size in university and Veterans Affairs Health Care System patients with negative prostate biopsies

Martha Kennedy Terris, Anthony F. Prestigiacomo, Thomas A. Stamey

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Objectives. Many important prostate studies take place at Veterans Affairs hospitals. We have examined whether the patient population at these institutions is comparable to the population presenting for prostate evaluation at university hospitals. Methods. We included all patients presenting for transrectal ultrasound (TRUS) and biopsy in whom systematic biopsies failed to reveal prostate cancer at both Stanford University Medical Center (90 patients) and the Palo Alto Veterans Affairs Health Care System (103 patients) from August 1, 1995 to July 31, 1996. Identical techniques and equipment for TRUS examination and prostate size determination were used at both institutions. Results. There was no significant difference in the age or prostate-specific antigen (PSA) levels of the patients at the two institutions. The mean prostatic volume of the Stanford University patients was 71 cm3 (median 63 cm3), whereas the mean prostatic volume of patients at the Palo Alto Veterans Affairs hospital was 52 cm3 (median 43 cm3), a highly statistically significant difference (P = 0.0009). Conclusions. The smaller size of the prostate glands in Veterans Affairs patients may be the result of differences in referral base, socioeconomic factors, or environmental factors. These data may have significance for trials conducted only on the prostates of men who are seen at Veterans Affairs hospitals.

Original languageEnglish (US)
Pages (from-to)412-414
Number of pages3
JournalUrology
Volume51
Issue number3
DOIs
StatePublished - Mar 1 1998
Externally publishedYes

Fingerprint

Veterans Health
Prostate
Delivery of Health Care
Biopsy
Veterans Hospitals
Veterans
Prostate-Specific Antigen
Population
Prostatic Neoplasms
Referral and Consultation
Equipment and Supplies

ASJC Scopus subject areas

  • Urology

Cite this

Comparison of prostate size in university and Veterans Affairs Health Care System patients with negative prostate biopsies. / Terris, Martha Kennedy; Prestigiacomo, Anthony F.; Stamey, Thomas A.

In: Urology, Vol. 51, No. 3, 01.03.1998, p. 412-414.

Research output: Contribution to journalArticle

@article{0b45d781ddf54988be396882ea893c9e,
title = "Comparison of prostate size in university and Veterans Affairs Health Care System patients with negative prostate biopsies",
abstract = "Objectives. Many important prostate studies take place at Veterans Affairs hospitals. We have examined whether the patient population at these institutions is comparable to the population presenting for prostate evaluation at university hospitals. Methods. We included all patients presenting for transrectal ultrasound (TRUS) and biopsy in whom systematic biopsies failed to reveal prostate cancer at both Stanford University Medical Center (90 patients) and the Palo Alto Veterans Affairs Health Care System (103 patients) from August 1, 1995 to July 31, 1996. Identical techniques and equipment for TRUS examination and prostate size determination were used at both institutions. Results. There was no significant difference in the age or prostate-specific antigen (PSA) levels of the patients at the two institutions. The mean prostatic volume of the Stanford University patients was 71 cm3 (median 63 cm3), whereas the mean prostatic volume of patients at the Palo Alto Veterans Affairs hospital was 52 cm3 (median 43 cm3), a highly statistically significant difference (P = 0.0009). Conclusions. The smaller size of the prostate glands in Veterans Affairs patients may be the result of differences in referral base, socioeconomic factors, or environmental factors. These data may have significance for trials conducted only on the prostates of men who are seen at Veterans Affairs hospitals.",
author = "Terris, {Martha Kennedy} and Prestigiacomo, {Anthony F.} and Stamey, {Thomas A.}",
year = "1998",
month = "3",
day = "1",
doi = "10.1016/S0090-4295(97)00647-X",
language = "English (US)",
volume = "51",
pages = "412--414",
journal = "Urology",
issn = "0090-4295",
publisher = "Elsevier Inc.",
number = "3",

}

TY - JOUR

T1 - Comparison of prostate size in university and Veterans Affairs Health Care System patients with negative prostate biopsies

AU - Terris, Martha Kennedy

AU - Prestigiacomo, Anthony F.

AU - Stamey, Thomas A.

PY - 1998/3/1

Y1 - 1998/3/1

N2 - Objectives. Many important prostate studies take place at Veterans Affairs hospitals. We have examined whether the patient population at these institutions is comparable to the population presenting for prostate evaluation at university hospitals. Methods. We included all patients presenting for transrectal ultrasound (TRUS) and biopsy in whom systematic biopsies failed to reveal prostate cancer at both Stanford University Medical Center (90 patients) and the Palo Alto Veterans Affairs Health Care System (103 patients) from August 1, 1995 to July 31, 1996. Identical techniques and equipment for TRUS examination and prostate size determination were used at both institutions. Results. There was no significant difference in the age or prostate-specific antigen (PSA) levels of the patients at the two institutions. The mean prostatic volume of the Stanford University patients was 71 cm3 (median 63 cm3), whereas the mean prostatic volume of patients at the Palo Alto Veterans Affairs hospital was 52 cm3 (median 43 cm3), a highly statistically significant difference (P = 0.0009). Conclusions. The smaller size of the prostate glands in Veterans Affairs patients may be the result of differences in referral base, socioeconomic factors, or environmental factors. These data may have significance for trials conducted only on the prostates of men who are seen at Veterans Affairs hospitals.

AB - Objectives. Many important prostate studies take place at Veterans Affairs hospitals. We have examined whether the patient population at these institutions is comparable to the population presenting for prostate evaluation at university hospitals. Methods. We included all patients presenting for transrectal ultrasound (TRUS) and biopsy in whom systematic biopsies failed to reveal prostate cancer at both Stanford University Medical Center (90 patients) and the Palo Alto Veterans Affairs Health Care System (103 patients) from August 1, 1995 to July 31, 1996. Identical techniques and equipment for TRUS examination and prostate size determination were used at both institutions. Results. There was no significant difference in the age or prostate-specific antigen (PSA) levels of the patients at the two institutions. The mean prostatic volume of the Stanford University patients was 71 cm3 (median 63 cm3), whereas the mean prostatic volume of patients at the Palo Alto Veterans Affairs hospital was 52 cm3 (median 43 cm3), a highly statistically significant difference (P = 0.0009). Conclusions. The smaller size of the prostate glands in Veterans Affairs patients may be the result of differences in referral base, socioeconomic factors, or environmental factors. These data may have significance for trials conducted only on the prostates of men who are seen at Veterans Affairs hospitals.

UR - http://www.scopus.com/inward/record.url?scp=0032031250&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032031250&partnerID=8YFLogxK

U2 - 10.1016/S0090-4295(97)00647-X

DO - 10.1016/S0090-4295(97)00647-X

M3 - Article

VL - 51

SP - 412

EP - 414

JO - Urology

JF - Urology

SN - 0090-4295

IS - 3

ER -