Validity and Reliability Resource Utilization in Dementia 3.2 Thai for Assessing Cost of Dementia Care
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Abstract
Background
Assessing the cost of dementia is a complex process, but no assessment instrument in Thai has existed. Cost estimates are needed in Thailand, especially for family caregivers. The objective was to translate the widely used tool Resource Utilization in Dementia 3.2 (RUD) into Thai and to evaluate the validity and reliability. The RUD 3.2 was first translated from English into Thai, and the back-translation was then carried out for purposes of linguistic and technical accuracy. The completed Thai RUD 3.2 was tested for intra-rater reliability among 30 dementia caregivers in the Lamsonthi District, Lopburi Province. Reliability was analyzed by means of the Kappa coefficient and intra-class correlation coefficient (ICC). It was found that the lengthy, the methodical process of translating and the back-translation resulted in an approval of validity. Intra-rater testing on reliability showed varied results: such as caregiver’s characteristics (kappa 0.55, 1.00); caregiver time (kappa 0.76, 0.96); caregiver work status (kappa 0.00, 1.00); caregiver health care resource utilization (kappa 0.94, 1.00); patient living accommodation (kappa 1.00); and patient health care resource utilization (kappa 0.52, 1.00). Here, the RUD 3.2 Thai version was utilized to conduct a thorough examination of the validity of the contents and its reliability. The RUD 3.2 Thai was accordingly suggested as a reasonable instrument for the assessment of caregiving time and resource utilization among Thai dementia caregivers.
Keywords: Resource Utilization in Dementia, Dementia, Thai, Reliability, Back-Translation, Assessing Cost
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