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ABSTRACT: Objective
To validate the Caregiver-Perceived Burden Questionnaire (CPBQ) and report its psychometric properties.Methods
The CPBQ was administered to caregivers of patients with moderate-to-severe AD in a double-blind randomized trial comparing extended-release memantine to placebo (n = 676). Measurement properties were analyzed using factor analysis, classical test theory, and Rasch analysis.Results
Two subscales were identified: the Caregivers' Assessment of the Patient (CAP) and the Caregivers' Assessment of Themselves (CAT). The reliability was .89 (CAP) and .83 (CAT). The CAP scores were significantly correlated (r > .3) with scores from the Severe Impairment Battery (SIB) and the Neuropsychiatric Inventory (NPI). The CAT scores were significantly correlated with NPI scores. The CAT discriminated among patients by clinician-rated severity and significantly differentiated between responders and nonresponders.Conclusion
The CPBQ appears to be a reliable, valid, and responsive measure that enables linking caregiver's perceptions about burden and patient function in patients with moderate-to-severe AD.
SUBMITTER: Erder MH
PROVIDER: S-EPMC10697400 | biostudies-literature | 2012 Nov
REPOSITORIES: biostudies-literature
Erder M Haim MH Wilcox Teresa K TK Chen Wen-Hung WH O'Quinn Sean S Setyawan Juliana J Saxton Judith J
American journal of Alzheimer's disease and other dementias 20120816 7
<h4>Objective</h4>To validate the Caregiver-Perceived Burden Questionnaire (CPBQ) and report its psychometric properties.<h4>Methods</h4>The CPBQ was administered to caregivers of patients with moderate-to-severe AD in a double-blind randomized trial comparing extended-release memantine to placebo (n = 676). Measurement properties were analyzed using factor analysis, classical test theory, and Rasch analysis.<h4>Results</h4>Two subscales were identified: the Caregivers' Assessment of the Patient ...[more]