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Related Experiment Videos

Patient utilities in chronic musculoskeletal pain: how useful is the standard gamble method?

M E Goossens1, J W Vlaeyen, M P Rutten-van Mölken

  • 1Institute for Rehabilitation Research, Hoensbroek, The Netherlands. m.goossens@irv.nl

Pain
|April 16, 1999
PubMed
Summary
This summary is machine-generated.

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The rating scale (RS) is more effective than the standard gamble (SG) for measuring health outcomes in chronic pain patients. RS demonstrates better construct validity and responsiveness for economic evaluations in pain management.

Area of Science:

  • Health Economics
  • Psychometrics
  • Pain Management

Background:

  • Quality of life measurement is crucial for economic evaluations in healthcare.
  • Utility measures are essential for assessing health states and patient preferences.
  • Existing utility instruments have been underutilized in chronic pain research.

Purpose of the Study:

  • To compare the psychometric properties of the rating scale (RS) and standard gamble (SG) for utility assessment.
  • To evaluate the construct validity and responsiveness of RS and SG in chronic pain populations.
  • To determine the most suitable utility measure for economic evaluations in chronic pain management.

Main Methods:

  • A comparative study involving 133 fibromyalgia and 148 chronic low back pain patients.

Related Experiment Videos

  • Assessment of utility using the rating scale (RS) and standard gamble (SG).
  • Correlation analysis with descriptive and domain-specific quality of life measures, and test-retest reliability.

    • Main Results:

    • The rating scale (RS) showed moderate correlations with quality of life measures, while the standard gamble (SG) showed poor correlations.
    • RS explained 32% of the variance in utility values, compared to 13% for SG.
    • RS demonstrated acceptable construct validity and greater responsiveness to changes in patient preferences than SG.

    Conclusions:

    • The rating scale (RS) is a more valid and responsive measure for economic evaluations in chronic musculoskeletal pain compared to the standard gamble (SG).
    • Both domain-specific measures and valuation measures (like RS) should be included in economic evaluations.
    • RS is recommended over SG for assessing health outcomes and informing decisions on interventions for chronic pain.