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Title
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Assessment of health-related quality of life after TBI : comparison of a disease-specific (QOLIBRI) with a generic (SF-36) instrument
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Author
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Abstract
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| Psychosocial, emotional, and physical problems can emerge after traumatic brain injury (TBI), potentially impacting health-related quality of life (HRQoL). Until now, however, neither the discriminatory power of disease-specific (QOLIBRI) and generic (SF-36) HRQoL nor their correlates have been compared in detail. These aspects as well as some psychometric item characteristics were studied in a sample of 795 TBI survivors. The Shannon H' index absolute informativity, as an indicator of an instrument's power to differentiate between individuals within a specific group or health state, was investigated. Psychometric performance of the two instruments was predominantly good, generally higher, and more homogenous for the QOLIBRI than for the SF-36 subscales. Notably, the SF-36 "Role Physical," " Role Emotional," and "Social Functioning" subscales showed less satisfactory discriminatory power than all other dimensions or the sum scores of both instruments. The absolute informativity of disease-specific as well as generic HRQoL instruments concerning the different groups defined by different correlates differed significantly. When the focus is on how a certain subscale or sum score differentiates between individuals in one specific dimension/health state, the QOLIBRI can be recommended as the preferable instrument. |
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Language
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English
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Source (journal)
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Behavioural neurology : an international journal with a predominantly clinical emphasis on the meaning of disordered human behaviour / Association of American Medical Colleges. - London
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Publication
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London
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2016
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ISSN
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0953-4180
1875-8584
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DOI
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10.1155/2016/7928014
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Volume/pages
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(2016)
, 14 p.
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Article Reference
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7928014
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ISI
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000370269100001
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Medium
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E-only publicatie
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Full text (Publisher's DOI)
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Full text (open access)
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