Translated versions of voice handicap index (Vhi)-30 across languages: A systematic review

Background: in this systematic review,the aim is to investigate different vhi-30 versions between languages regard-ing their validity,reliability and their translation process. methods: articles were extracted systematically from some of the prime databases including cochrane,googlescholar,medline (via pubmed gate),sciencedirect,web of science,and their reference lists by voice handicap index key-word with only title limitation and time of publication (from 1997 to 2014). however the other limitations (e.g. exclud-ing non-english,other versions of vhi ones,and so on) applied manually after studying the papers. in order to ap-praise the methodology of the papers,three authors did it by 12-item diagnostic test checklist in critical appraisal skills programme or (casp) site. after applying all of the screenings,the papers that had the study eligibility criteria such as; translation,validity,and reliability processes,included in this review. results: the remained non-repeated articles were 12 from different languages. all of them reported validity,reliability and translation method,which presented in details in this review. conclusion: mainly the preferred method for translation in the gathered papers was brislin‘s classic back-translation model (1970),although the procedure was not performed completely but it was more prominent than other translation procedures. high test-retest reliability,internal consistency and moderate construct validity between different lan-guages in regards to all 3 vhi-30 domains confirm the applicability of translated vhi-30 version across languages. © 2015,iranian journal of public health. all right reserved.