Spouses of women with the fibromyalgia syndrome as proxy raters of health status

Silvia M. Bigatti, Terry A. Cronan, Heather Frederick, Robert M. Kaplan

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

Objectives: To determine the agreement and bias of proxy responses to the Quality of Well-Being Scale [QWB] by husbands or partners of women with the fibromyalgia syndrome. Methods: Proxies and patient couples [N = 43] were interviewed to determine the agreement and bias of their proxy responses to the QWB and to identify proxy and patient characteristics that affect the bias and agreement between their responses. Results: Intraclass correlation coefficients and t-tests indicated that there was moderate agreement between the patient and proxy responses overall with poor agreement on the symptoms subscale and good agreement on the social activity, mobility, and physical functioning subscales. Systematic bias was not observed for the measure overall, nor for any of the subscales. Proxies who overestimated the patient's health status did not differ from those who underestimated on demographic or health status variables. A scatter plot of the difference between patient and proxy scores for the overallQWBplotted against the averageQWBscore for each pair suggested that agreement was best when the health status of the patient was low. Conclusions: These findings suggest that the spouses of patients with the fibromyalgia syndrome may be reliable proxies for the measuring of overall QWB. Proxy responses may be most accurate for patients' whose health is poorest. It is in these cases that proxy reporting is most needed.

Original languageEnglish (US)
Pages (from-to)9-17
Number of pages9
JournalJournal of Musculoskeletal Pain
Volume15
Issue number3
DOIs
StatePublished - Sep 11 2007

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Keywords

  • Caregivers
  • Fibromyalgia syndrome
  • Health status
  • Proxy raters
  • Quality of Well-Being Scale

ASJC Scopus subject areas

  • Rheumatology
  • Health Professions(all)

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