Development and psychometric evaluation of a health-related quality of life instrument for individuals with adult-onset hearing loss.

Development and psychometric evaluation of a health-related quality of life instrument for individuals with adult-onset hearing loss.

Int J Audiol. 2016 Apr 22;:1-11

Authors: Stika CJ, Hays RD

Abstract
OBJECTIVE: Self-reports of 'hearing handicap' are available, but a comprehensive measure of health-related quality of life (HRQOL) for individuals with adult-onset hearing loss (AOHL) does not exist. Our objective was to develop and evaluate a multidimensional HRQOL instrument for individuals with AOHL.
DESIGN: The Impact of Hearing Loss Inventory Tool (IHEAR-IT) was developed using results of focus groups, a literature review, advisory expert panel input, and cognitive interviews.
STUDY SAMPLE: The 73-item field-test instrument was completed by 409 adults (22-91 years old) with varying degrees of AOHL and from different areas of the USA.
RESULTS: Multitrait scaling analysis supported four multi-item scales and five individual items. Internal consistency reliabilities ranged from 0.93 to 0.96 for the scales. Construct validity was supported by correlations between the IHEAR-IT scales and scores on the 36-item Short Form Health Survey, version 2.0 (SF-36v2) mental composite summary (r = 0.32-0.64) and the Hearing Handicap Inventory for the Elderly/Adults (HHIE/HHIA) (r ≥ -0.70).
CONCLUSIONS: The field test provides initial support for the reliability and construct validity of the IHEAR-IT for evaluating HRQOL of individuals with AOHL. Further research is needed to evaluate the responsiveness to change of the IHEAR-IT scales and identify items for a short-form.

PMID: 27104754 [PubMed - as supplied by publisher]

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