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Validation and Reliability of the Wisconsin Stone Quality of Life Questionnaire.

Publication ,  Journal Article
Penniston, KL; Antonelli, JA; Viprakasit, DP; Averch, TD; Sivalingam, S; Sur, RL; Pais, VM; Chew, BH; Bird, VG; Nakada, SY
Published in: J Urol
May 2017

PURPOSE: WISQOL (Wisconsin Stone Quality of Life questionnaire) is a disease specific, health related quality of life measure designed for patients who form kidney stones. The purpose of this study was to demonstrate the external and convergent validity of WISQOL and assess its psychometric properties. MATERIALS AND METHODS: At the WISQOL creation site (development sample) and at 8 geographically diverse centers in the United States and Canada (consortium sample) patients with a history of kidney stones were recruited. Item response option variability, correlation patterns and internal consistency were compared between samples. Convergent validity was assessed by patients who completed both WISQOL and SF-36v2® (36-Item Short Form Health Survey, version 2). RESULTS: Results were analyzed in 1,609 patients, including 275 in the development sample and 1,334 in the consortium sample. Response option variability patterns of all items were acceptable. Internal WISQOL consistency was acceptable. Intersample score comparisons revealed few differences. For both samples the domain-total WISQOL score correlations exceeded 0.86. Item level analyses demonstrated suitable variation, allowing for discriminatory scoring. At the time that they completed WISQOL, patients with stones and stone related symptoms scored lowest for health related quality of life. Patients with stones but no symptoms and those with no stones scored higher. The convergent validity substudy confirmed the ability of WISQOL to identify stone specific decrements in health related quality of life that were not identified on SF-36v2. CONCLUSIONS: WISQOL is internally consistent and discriminates among patients with different stone statuses and symptoms. WISQOL is externally valid across the North American population. It may be used for multicenter health related quality of life studies in kidney stone disease.

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Published In

J Urol

DOI

EISSN

1527-3792

Publication Date

May 2017

Volume

197

Issue

5

Start / End Page

1280 / 1288

Location

United States

Related Subject Headings

  • Wisconsin
  • Urology & Nephrology
  • United States
  • Surveys and Questionnaires
  • Reproducibility of Results
  • Quality of Life
  • Psychometrics
  • Prospective Studies
  • Middle Aged
  • Male
 

Citation

APA
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Penniston, K. L., Antonelli, J. A., Viprakasit, D. P., Averch, T. D., Sivalingam, S., Sur, R. L., … Nakada, S. Y. (2017). Validation and Reliability of the Wisconsin Stone Quality of Life Questionnaire. J Urol, 197(5), 1280–1288. https://doi.org/10.1016/j.juro.2016.11.097
Penniston, Kristina L., Jodi A. Antonelli, Davis P. Viprakasit, Timothy D. Averch, Sri Sivalingam, Roger L. Sur, Vernon M. Pais, Ben H. Chew, Vincent G. Bird, and Stephen Y. Nakada. “Validation and Reliability of the Wisconsin Stone Quality of Life Questionnaire.J Urol 197, no. 5 (May 2017): 1280–88. https://doi.org/10.1016/j.juro.2016.11.097.
Penniston KL, Antonelli JA, Viprakasit DP, Averch TD, Sivalingam S, Sur RL, et al. Validation and Reliability of the Wisconsin Stone Quality of Life Questionnaire. J Urol. 2017 May;197(5):1280–8.
Penniston, Kristina L., et al. “Validation and Reliability of the Wisconsin Stone Quality of Life Questionnaire.J Urol, vol. 197, no. 5, May 2017, pp. 1280–88. Pubmed, doi:10.1016/j.juro.2016.11.097.
Penniston KL, Antonelli JA, Viprakasit DP, Averch TD, Sivalingam S, Sur RL, Pais VM, Chew BH, Bird VG, Nakada SY. Validation and Reliability of the Wisconsin Stone Quality of Life Questionnaire. J Urol. 2017 May;197(5):1280–1288.
Journal cover image

Published In

J Urol

DOI

EISSN

1527-3792

Publication Date

May 2017

Volume

197

Issue

5

Start / End Page

1280 / 1288

Location

United States

Related Subject Headings

  • Wisconsin
  • Urology & Nephrology
  • United States
  • Surveys and Questionnaires
  • Reproducibility of Results
  • Quality of Life
  • Psychometrics
  • Prospective Studies
  • Middle Aged
  • Male