Measurement accuracy in assessing patient's quality of life: to weight or not to weight domains of quality of life

Qual Life Res. 2009 Aug;18(6):775-82. doi: 10.1007/s11136-009-9492-0. Epub 2009 Jun 4.

Abstract

Purpose: Health-related quality of life (HRQOL) measures typically do not incorporate patients' preferences for domains such as physical, emotional, functional and social/family well-being, which may compromise precision.

Method: A forced-choice domain-preference measure was developed to assess the importance of HRQOL domains. About 194 cancer patients completed the domain-preference measure, along with measures of HRQOL, coping, adjustment, and life satisfaction.

Results: Patients ranked emotional well-being as most important and the loss of social-family well-being as the most difficult to do without. A weighting algorithm revealed no advantage to incorporating individuals' domain preferences in HRQOL assessment; however, preliminary evidence suggested that HRQOL measurement may be more accurate in predicting outcomes for individuals with no distinct domain preferences than those with distinct preference profiles.

Conclusion: This study provides preliminary evidence for the validity of current measures of HRQOL, which may inherently take into account patients' domain preferences.

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Female
  • Health Status
  • Humans
  • Indiana
  • Male
  • Michigan
  • Middle Aged
  • Patients / psychology*
  • Psychiatric Status Rating Scales / standards*
  • Quality of Life*
  • Reproducibility of Results