van der Linden, FAH; Kragt, JJ; Hobart, JC; Klein, M; Thompson, AJ; van der Ploeg, HM; ... Uitdehaag, BMJ; + view all van der Linden, FAH; Kragt, JJ; Hobart, JC; Klein, M; Thompson, AJ; van der Ploeg, HM; Polman, CH; Uitdehaag, BMJ; - view fewer (2006) Proxy measurements in multiple sclerosis: agreement between patients and their partners on the impact of multiple sclerosis in daily life. J NEUROL NEUROSUR PS , 77 (10) 1157 - 1162.
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Background: The use of self-report measurements in clinical settings has increased. The underlying assumption for self- report measurements is that the patient understands the questions fully and is able to give a reliable assessment of his or her own health status. This might be problematic in patients with limitations that interfere with reliable self- assessment such as cognitive impairment or serious mood disturbances, as may be the case in multiple sclerosis. In these situations proxies may provide valuable information, provided we can be certain that proxies and patients give consistent ratings.Objective: To examine whether patients with multiple sclerosis and their partners agree on the impact of multiple sclerosis on the daily life of the patient by using the Multiple Sclerosis Impact Scale (MSIS-29).Methods: 59 patients with multiple sclerosis and their partners completed the MSIS-29. Agreement was examined, comprehensively at scale score levels and item functioning, using both traditional and less conventional psychometric methods (Rasch analysis).Results: Agreement between patients and partners was good for the physical scale, and slightly less but still adequate for the psychological scale. Mean directional differences did not show considerable systematic bias between patients and proxies. Intraclass correlation coefficients (ICCs) satisfied the requirements for agreement, but were higher for the physical scale (0.81) than for the psychological scale (0.72). These findings were supported by Rasch analyses.Conclusion: In this sample, albeit small, partners provided accurate estimates of the impact of multiple sclerosis. This supports the value of self- rating scales and indicates that partners might be useful sources of information when assessing the impact of multiple sclerosis on the daily life of patients.
|Title:||Proxy measurements in multiple sclerosis: agreement between patients and their partners on the impact of multiple sclerosis in daily life|
|Keywords:||QUALITY-OF-LIFE, HEALTH-CARE PROVIDERS, SIGNIFICANT OTHERS, FUNCTIONAL STATUS, DISABILITY STATUS, DEPRESSION SCALE, HOSPITAL ANXIETY, CHRONIC DISEASE, RELIABILITY, RATINGS|
|UCL classification:||UCL > School of Life and Medical Sciences > Faculty of Brain Sciences|
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