Rescoring the NIH chronic prostatitis symptom index: Nothing new

J. Q. Clemens, Elizabeth Calhoun, M. S. Litwin, M. McNaughton-Collins, R. L. Dunn, E. M. Crowley, J. R. Landis

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The National Institutes of Health-chronic prostatitis symptom index (NIH-CPSI) is a commonly used 13-item questionnaire for the assessment of symptom severity in men with chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS). For each item, score ranges are 0-1 (6 items), 0-3 (2 items), 0-5 (3 items), 0-6 (1 item) and 0-10 (1 item). This scoring system is straightforward, but items with wider score ranges are de facto weighted more, which could adversely affect the performance characteristics of the questionnaire. We rescored the NIH-CPSI so that equal weights were assigned to each item, and compared the performance of the standard and rescored questionnaires using the original validation dataset. Both the original and revised versions of the scoring algorithm discriminated similarly among groups of men with CP (n=151), benign prostatic hyperplasia (n=149) and controls (n=134). The internal consistency of the questionnaire was slightly better with the revised scoring, but values with the standard scoring were sufficiently high (Cronbach's ≥ 0.80). We conclude that although the rescored NIH-CPSI provides better face validity than the standard scoring algorithm, it requires additional calculation efforts and yields only marginal improvements in performance.

Original languageEnglish (US)
Pages (from-to)285-287
Number of pages3
JournalProstate Cancer and Prostatic Diseases
Volume12
Issue number3
DOIs
StatePublished - 2009
Externally publishedYes

Fingerprint

Prostatitis
National Institutes of Health (U.S.)
Symptom Assessment
Prostatic Hyperplasia
Reproducibility of Results
Weights and Measures
Surveys and Questionnaires

ASJC Scopus subject areas

  • Oncology
  • Urology
  • Cancer Research

Cite this

Clemens, J. Q., Calhoun, E., Litwin, M. S., McNaughton-Collins, M., Dunn, R. L., Crowley, E. M., & Landis, J. R. (2009). Rescoring the NIH chronic prostatitis symptom index: Nothing new. Prostate Cancer and Prostatic Diseases, 12(3), 285-287. https://doi.org/10.1038/pcan.2009.22

Rescoring the NIH chronic prostatitis symptom index : Nothing new. / Clemens, J. Q.; Calhoun, Elizabeth; Litwin, M. S.; McNaughton-Collins, M.; Dunn, R. L.; Crowley, E. M.; Landis, J. R.

In: Prostate Cancer and Prostatic Diseases, Vol. 12, No. 3, 2009, p. 285-287.

Research output: Contribution to journalArticle

Clemens, JQ, Calhoun, E, Litwin, MS, McNaughton-Collins, M, Dunn, RL, Crowley, EM & Landis, JR 2009, 'Rescoring the NIH chronic prostatitis symptom index: Nothing new', Prostate Cancer and Prostatic Diseases, vol. 12, no. 3, pp. 285-287. https://doi.org/10.1038/pcan.2009.22
Clemens, J. Q. ; Calhoun, Elizabeth ; Litwin, M. S. ; McNaughton-Collins, M. ; Dunn, R. L. ; Crowley, E. M. ; Landis, J. R. / Rescoring the NIH chronic prostatitis symptom index : Nothing new. In: Prostate Cancer and Prostatic Diseases. 2009 ; Vol. 12, No. 3. pp. 285-287.
@article{c323fc5284084a4bb71fa57ee8664001,
title = "Rescoring the NIH chronic prostatitis symptom index: Nothing new",
abstract = "The National Institutes of Health-chronic prostatitis symptom index (NIH-CPSI) is a commonly used 13-item questionnaire for the assessment of symptom severity in men with chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS). For each item, score ranges are 0-1 (6 items), 0-3 (2 items), 0-5 (3 items), 0-6 (1 item) and 0-10 (1 item). This scoring system is straightforward, but items with wider score ranges are de facto weighted more, which could adversely affect the performance characteristics of the questionnaire. We rescored the NIH-CPSI so that equal weights were assigned to each item, and compared the performance of the standard and rescored questionnaires using the original validation dataset. Both the original and revised versions of the scoring algorithm discriminated similarly among groups of men with CP (n=151), benign prostatic hyperplasia (n=149) and controls (n=134). The internal consistency of the questionnaire was slightly better with the revised scoring, but values with the standard scoring were sufficiently high (Cronbach's ≥ 0.80). We conclude that although the rescored NIH-CPSI provides better face validity than the standard scoring algorithm, it requires additional calculation efforts and yields only marginal improvements in performance.",
author = "Clemens, {J. Q.} and Elizabeth Calhoun and Litwin, {M. S.} and M. McNaughton-Collins and Dunn, {R. L.} and Crowley, {E. M.} and Landis, {J. R.}",
year = "2009",
doi = "10.1038/pcan.2009.22",
language = "English (US)",
volume = "12",
pages = "285--287",
journal = "Prostate Cancer and Prostatic Diseases",
issn = "1365-7852",
publisher = "Nature Publishing Group",
number = "3",

}

TY - JOUR

T1 - Rescoring the NIH chronic prostatitis symptom index

T2 - Nothing new

AU - Clemens, J. Q.

AU - Calhoun, Elizabeth

AU - Litwin, M. S.

AU - McNaughton-Collins, M.

AU - Dunn, R. L.

AU - Crowley, E. M.

AU - Landis, J. R.

PY - 2009

Y1 - 2009

N2 - The National Institutes of Health-chronic prostatitis symptom index (NIH-CPSI) is a commonly used 13-item questionnaire for the assessment of symptom severity in men with chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS). For each item, score ranges are 0-1 (6 items), 0-3 (2 items), 0-5 (3 items), 0-6 (1 item) and 0-10 (1 item). This scoring system is straightforward, but items with wider score ranges are de facto weighted more, which could adversely affect the performance characteristics of the questionnaire. We rescored the NIH-CPSI so that equal weights were assigned to each item, and compared the performance of the standard and rescored questionnaires using the original validation dataset. Both the original and revised versions of the scoring algorithm discriminated similarly among groups of men with CP (n=151), benign prostatic hyperplasia (n=149) and controls (n=134). The internal consistency of the questionnaire was slightly better with the revised scoring, but values with the standard scoring were sufficiently high (Cronbach's ≥ 0.80). We conclude that although the rescored NIH-CPSI provides better face validity than the standard scoring algorithm, it requires additional calculation efforts and yields only marginal improvements in performance.

AB - The National Institutes of Health-chronic prostatitis symptom index (NIH-CPSI) is a commonly used 13-item questionnaire for the assessment of symptom severity in men with chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS). For each item, score ranges are 0-1 (6 items), 0-3 (2 items), 0-5 (3 items), 0-6 (1 item) and 0-10 (1 item). This scoring system is straightforward, but items with wider score ranges are de facto weighted more, which could adversely affect the performance characteristics of the questionnaire. We rescored the NIH-CPSI so that equal weights were assigned to each item, and compared the performance of the standard and rescored questionnaires using the original validation dataset. Both the original and revised versions of the scoring algorithm discriminated similarly among groups of men with CP (n=151), benign prostatic hyperplasia (n=149) and controls (n=134). The internal consistency of the questionnaire was slightly better with the revised scoring, but values with the standard scoring were sufficiently high (Cronbach's ≥ 0.80). We conclude that although the rescored NIH-CPSI provides better face validity than the standard scoring algorithm, it requires additional calculation efforts and yields only marginal improvements in performance.

UR - http://www.scopus.com/inward/record.url?scp=70249139074&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=70249139074&partnerID=8YFLogxK

U2 - 10.1038/pcan.2009.22

DO - 10.1038/pcan.2009.22

M3 - Article

C2 - 19488065

AN - SCOPUS:70249139074

VL - 12

SP - 285

EP - 287

JO - Prostate Cancer and Prostatic Diseases

JF - Prostate Cancer and Prostatic Diseases

SN - 1365-7852

IS - 3

ER -