Translation of the international outcome inventory for hearing aids into Portuguese from Portugal

Abstract

ObjectiveTo translate the International Outcome Inventory for Hearing Aids (IOI-HA) Questionnaire from English to Portuguese (from Portugal) and to validate this instrument of study on the Portuguese population.DesignIn this prospective study, a translation from English into Portuguese of the IOI-HA was performed, and linguistic adaptation and counter translation were also accomplished. The data were analysed for internal consistency testing for correlations between each individual item and the total score of the IOI-HA, assessing the Cronbach α and performing test–retest analysis.Setting and participants80 hearing aid users aged 18 years or older were recruited from an ear, nose and throat (ENT) appointment in Coimbra's hospital, Portugal. 84% of the participants were unilateral hearing aid users, whereas 16% were bilateral users.InterventionsThe patients volunteered to answer the questionnaire during an ENT appointment. All of the patients had been using the hearing aids for more than 3 years.After the first application of the questionnaire, a new appointment was planned for retesting, within at least 7 days to no more than 60 days. 29 participants answered the questionnaire again according to the same procedure.ResultsThe mean IOI-HA total score in the study population was 27.33±4.93 (9–35). The mean values obtained for each item of the questionnaire ranged from 3.19 to 4.54. The Cronbach α was 0.838 and the Cronbach α values when the item was removed, were also significantly strong. The test–retest analysis revealed no differences between the paired groups.ConclusionsIn the present study a valid and reliable translation and adaptation of the IOI-HA into Portuguese from Portugal is proposed. This tool will be available for clinical assessment of hearing aid users.

Psychometric properties of the Kannada version of the International Outcome Inventory for Hearing Aids (IOI-HA)

“…The study results support good discriminant validity of the Kannada version of the IOA-HA questionnaire, as each of the correlations (inter-item) were below 0.60 (see Table 5). These results were consistent with previous studies that showed a good discriminant validity of IOI-HA in English and other translated versions (Cox, Stephens, and Kramer 2002;Kramer et al 2002;Pavia et al, 2017). The current study showed poor convergent validity (i.e.…”

“…The Kannada version of IOI-HA also had acceptable internal consistency (Cronbach's Alpha of 0.7) and test-retest reliability (ICC ¼ 0.71). The internal consistency, as measured using Cronbach's Alpha, was found to be slightly higher; this is similar to the 0.78 consistency in English (Cox and Alexander 2002), 0.83 in Korean (Chu et al 2012), 0.82 in Danish (Jespersen, Bille, and Legarth 2014), 0.84 in Portuguese (Pavia et al, 2017), and 0.77-0.79 in Dutch (Kramer et al 2002). Test-retest reliability in the current study (i.e.…”

“…IOI-HA was developed over 20 years ago without the use of ITI, and all previous studies (Br€ annstr€ om and Wennerstr€ om 2010; Chu et al 2012;Cox and Alexander 2002;Jespersen, Bille, and Legarth 2014;Kramer et al 2002;Pavia et al 2017) that examined the psychometric properties of IOI-HA except the recent international study (Leijon et al 2020) have applied parametric methods such as PCA. Considering this, to allow maximum inter-study compatibility, the statistical analysis in this study falls generally in line with the procedure applied by Cox and Alexander (2002) in the original IOI-HA study.…”

Hearing intervention for decreasing risk of developing dementia in elders with mild cognitive impairment: study protocol of a multicenter randomized controlled trial for Chinese Hearing Solution for Improvement of Cognition in Elders (CHOICE)

“…It consists of 7 questions, including the time of wearing hearing aids, the benefit and satisfaction of hearing aid applications, etc. Each question is ranging from the worst performance 1 to the best performance 5 [ 52 ].…”