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Development of a preference-based index from the National Eye Institute Visual Function Questionnaire-25.

Publication ,  Journal Article
Rentz, AM; Kowalski, JW; Walt, JG; Hays, RD; Brazier, JE; Yu, R; Lee, P; Bressler, N; Revicki, DA
Published in: JAMA Ophthalmol
March 2014

IMPORTANCE: Understanding how individuals value health states is central to patient-centered care and to health policy decision making. Generic preference-based measures of health may not effectively capture the impact of ocular diseases. Recently, 6 items from the National Eye Institute Visual Function Questionnaire-25 were used to develop the Visual Function Questionnaire-Utility Index health state classification, which defines visual function health states. OBJECTIVE: To describe elicitation of preferences for health states generated from the Visual Function Questionnaire-Utility Index health state classification and development of an algorithm to estimate health preference scores for any health state. DESIGN, SETTING, AND PARTICIPANTS: Nonintervention, cross-sectional study of the general community in 4 countries (Australia, Canada, United Kingdom, and United States). A total of 607 adult participants were recruited from local newspaper advertisements. In the United Kingdom, an existing database of participants from previous studies was used for recruitment. INTERVENTIONS: Eight of 15,625 possible health states from the Visual Function Questionnaire-Utility Index were valued using time trade-off technique. MAIN OUTCOMES AND MEASURES: A θ severity score was calculated for Visual Function Questionnaire-Utility Index-defined health states using item response theory analysis. Regression models were then used to develop an algorithm to assign health state preference values for all potential health states defined by the Visual Function Questionnaire-Utility Index. RESULTS: Health state preference values for the 8 states ranged from a mean (SD) of 0.343 (0.395) to 0.956 (0.124). As expected, preference values declined with worsening visual function. Results indicate that the Visual Function Questionnaire-Utility Index describes states that participants view as spanning most of the continuum from full health to dead. CONCLUSIONS AND RELEVANCE: Visual Function Questionnaire-Utility Index health state classification produces health preference scores that can be estimated in vision-related studies that include the National Eye Institute Visual Function Questionnaire-25. These preference scores may be of value for estimating utilities in economic and health policy analyses.

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Published In

JAMA Ophthalmol

DOI

EISSN

2168-6173

Publication Date

March 2014

Volume

132

Issue

3

Start / End Page

310 / 318

Location

United States

Related Subject Headings

  • Visual Acuity
  • United States
  • Surveys and Questionnaires
  • Sickness Impact Profile
  • Quality-Adjusted Life Years
  • Quality of Life
  • Ophthalmology & Optometry
  • National Eye Institute (U.S.)
  • Middle Aged
  • Male
 

Citation

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Rentz, A. M., Kowalski, J. W., Walt, J. G., Hays, R. D., Brazier, J. E., Yu, R., … Revicki, D. A. (2014). Development of a preference-based index from the National Eye Institute Visual Function Questionnaire-25. JAMA Ophthalmol, 132(3), 310–318. https://doi.org/10.1001/jamaophthalmol.2013.7639
Rentz, Anne M., Jonathan W. Kowalski, John G. Walt, Ron D. Hays, John E. Brazier, Ren Yu, Paul Lee, Neil Bressler, and Dennis A. Revicki. “Development of a preference-based index from the National Eye Institute Visual Function Questionnaire-25.JAMA Ophthalmol 132, no. 3 (March 2014): 310–18. https://doi.org/10.1001/jamaophthalmol.2013.7639.
Rentz AM, Kowalski JW, Walt JG, Hays RD, Brazier JE, Yu R, et al. Development of a preference-based index from the National Eye Institute Visual Function Questionnaire-25. JAMA Ophthalmol. 2014 Mar;132(3):310–8.
Rentz, Anne M., et al. “Development of a preference-based index from the National Eye Institute Visual Function Questionnaire-25.JAMA Ophthalmol, vol. 132, no. 3, Mar. 2014, pp. 310–18. Pubmed, doi:10.1001/jamaophthalmol.2013.7639.
Rentz AM, Kowalski JW, Walt JG, Hays RD, Brazier JE, Yu R, Lee P, Bressler N, Revicki DA. Development of a preference-based index from the National Eye Institute Visual Function Questionnaire-25. JAMA Ophthalmol. 2014 Mar;132(3):310–318.

Published In

JAMA Ophthalmol

DOI

EISSN

2168-6173

Publication Date

March 2014

Volume

132

Issue

3

Start / End Page

310 / 318

Location

United States

Related Subject Headings

  • Visual Acuity
  • United States
  • Surveys and Questionnaires
  • Sickness Impact Profile
  • Quality-Adjusted Life Years
  • Quality of Life
  • Ophthalmology & Optometry
  • National Eye Institute (U.S.)
  • Middle Aged
  • Male