Evidence map›Paper›PMID 22210512›Full record

ArticleWorld journal of urology2012

Evaluating the PCPT risk calculator in ten international biopsy cohorts: results from the Prostate Biopsy Collaborative Group.

Donna P Ankerst, Andreas Boeck, Stephen J Freedland, Ian M Thompson, Angel M Cronin, Monique J Roobol, Jonas Hugosson, J Stephen Jones, Michael W Kattan, Eric A Klein and 13 more

Abstract readValidation Study
In one paragraph

Article in World journal of urology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

33 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. Review
  5. A prostate cancer risk calculator: Use of clinical and magnetic resonance imaging data to predict biopsy outcome in North American men.Canadian Urological Association journal = Journal de l'Association des urologues du Canada · 2022
    Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Review
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

23 authors.

Donna P AnkerstDepartment of Urology, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Dr., San Antonio, TX 78229, USA. ankerst@uthscsa.edu
Andreas Boeck
Stephen J Freedland
Ian M Thompson
Angel M Cronin
Monique J Roobol
Jonas Hugosson
J Stephen Jones
Michael W Kattan
Eric A Klein
Freddie Hamdy
David Neal
Jenny Donovan
Dipen J Parekh
Helmut Klocker
Wolfgang Horninger
Amine Benchikh
Gilles Salama
Arnauld Villers
Daniel M Moreira
Fritz H Schröder
Hans Lilja
Andrew J Vickers

Funding

X-RAY CRYSTALLOGRAPHYP30CA008748 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI Nicholas D Socci · 1985 to 2026
$347.4M
SPORE In Prostate CancerP50CA092629 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI Yu Chen, MICHAEL J MORRIS · 2001 to 2026
$63.0M
TISSUE CULTURE---COREP30CA054174 · NCI · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI Lei Zheng · 1991 to 2026
$59.1M
SAN ANTONIO CENTER OF BIOMARKERS OF RISK FOR PROSTATE CAU01CA086402 · NCI · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI LEACH, ROBIN JEAN, THOMPSON, IAN M. · 2000 to 2018
$33.1M
Long-term prediction of prostate cancer death from kallikreins measured in bloodR33CA127768 · NCI · SLOAN-KETTERING INST CAN RESEARCH · PI LILJA, HANS GÖSTA · 2010 to 2011
$692k
Medical Research Council G0900871NCI NIH HHS CA086402NCI NIH HHS P30 CA008748NCI NIH HHS P30 CA054174NCI NIH HHS P30-CA054174NCI NIH HHS P50 CA092629NCI NIH HHS P50-CA92629NCI NIH HHS R33 CA127768NCI NIH HHS U01 CA086402
6 · The paper itself

Abstract

objectivesTo evaluate the discrimination, calibration, and net benefit performance of the Prostate Cancer Prevention Trial Risk Calculator (PCPTRC) across five European randomized study of screening for prostate cancer (ERSPC), 1 United Kingdom, 1 Austrian, and 3 US biopsy cohorts.

methodsPCPTRC risks were calculated for 25,733 biopsies using prostate-specific antigen (PSA), digital rectal examination, family history, history of prior biopsy, and imputation for missing covariates. Predictions were evaluated using the areas underneath the receiver operating characteristic curves (AUC), discrimination slopes, chi-square tests of goodness of fit, and net benefit decision curves.

resultsAUCs of the PCPTRC ranged from a low of 56% in the ERSPC Goeteborg Rounds 2-6 cohort to a high of 72% in the ERSPC Goeteborg Round 1 cohort and were statistically significantly higher than that of PSA in 6 out of the 10 cohorts. The PCPTRC was well calibrated in the SABOR, Tyrol, and Durham cohorts. There was limited to no net benefit to using the PCPTRC for biopsy referral compared to biopsying all or no men in all five ERSPC cohorts and benefit within a limited range of risk thresholds in all other cohorts.

conclusionsExternal validation of the PCPTRC across ten cohorts revealed varying degree of success highly dependent on the cohort, most likely due to different criteria for and work-up before biopsy. Future validation studies of new calculators for prostate cancer should acknowledge the potential impact of the specific cohort studied when reporting successful versus failed validation.

Indexed as

AgedBiopsy, NeedleCohort StudiesDigital Rectal ExaminationHumansMaleMiddle AgedProstateProstate-Specific AntigenProstatic NeoplasmsReproducibility of ResultsRisk AssessmentROC CurveProstate-Specific Antigen

Identifiers

PMID22210512
PMCPMC3616370

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.