Dahlin Redfors Y, Björsne A, Finizia C. Psychometric properties of the Swedish version of the international outcome inventory - alternative interventions (IOI-AI) - ear surgery (IOI-AI
op).
Int J Audiol 2024:1-8. [PMID:
38587069 DOI:
10.1080/14992027.2024.2332774]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 03/11/2024] [Indexed: 04/09/2024]
Abstract
OBJECTIVE
The aims of this study were to adapt the Swedish version of the International Outcome Inventory for Hearing Aids (IOI-HA) to the International Outcome Inventory for Alternative Interventions (IOI-AI) in the context of ear surgery (IOI-AIop) and to test the psychometric properties.
DESIGN
The validated Swedish questionnaire IOI-HA was adapted to the IOI-AIop by omitting the question about hearing aid use and changing the term "hearing aid" to "surgery" in the remaining items. The validity, component structure and reliability of the IOI-AIop were assessed.
STUDY SAMPLE
Subjects diagnosed with otosclerosis and undergoing stapedotomy were included in the study (n = 162).
RESULTS
High mean scores were noted for all items. Ceiling effects were noted, most pronounced for the satisfaction item. Principal component analysis (PCA) yielded a two-component structure explaining 77.5% of the variance. The test-retest reliability measured by intra class correlation coefficient was >0.9, and the internal consistency coefficient measured by Cronbach's alfa was >0.8.
CONCLUSION
The IOI-AIop showed good psychometric properties. However, ceiling effects were observed. The two-component solution was in line with previous factor analyses of the IOI-HA and the IOI-AI. The comprehensive IOI-AIop is recommended as a useful tool to evaluate patient perspectives after ear surgery.
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