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Validation of the THI-12 questionnaire for international use in assessing tinnitus: A multi-centre, prospective, observational study.
MedLine Citation:
PMID:  22339398     Owner:  NLM     Status:  Publisher    
Objective: To investigate and confirm the reliability and validity of the tinnitus handicap inventory12 (THI-12) in various countries and languages. Design: Prospective, observational study conducted in seven countries, using linguistically harmonized versions of the THI-12 in six languages. These were evaluated for test-retest reliability, internal consistency reliability, known-groups validity, and construct validity. Basic psychometric properties of supporting instruments were compared. Questionnaires were completed by the subjects at baseline and again after 12-30 days. Study sample: Adults with a clinical diagnosis of subjective tinnitus. Results: An exploratory factor analysis of the THI-12 items for the U.S. study population at baseline revealed a single common factor of high eigenvalue. Confirmatory factor analysis supported this in the separate countries. Test-retest reliability was moderate to high, and the conclusions were supported by a known-groups analysis; correlations with other scales expected to support construct validity were moderate. Conclusions: The THI-12 total score showed acceptable psychometric properties for all countries tested. The relationships between the THI-12 and the one-month and one-week versions of the TRS and TSS were similar and convergent. The THI-12 is thus a promising diagnostic tool for assessing treatment effects in multi-cultural and multi-lingual trials on tinnitus therapy.
Ulli S Bankstahl; Eric P Elkin; Alexander Gebauer; Roman Görtelmeyer
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-2-20
Journal Detail:
Title:  International journal of audiology     Volume:  -     ISSN:  1708-8186     ISO Abbreviation:  -     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-2-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101140017     Medline TA:  Int J Audiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
* Merz Pharmaceuticals GmbH Global R&D , Frankfurt , Germany.
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