Trans-adaptation and validation of dizziness handicap inventory in Telugu version (DHI-t)

Abstract

Objective: The current study aimed to evaluate the impact of dizziness on quality of life by translating, adapting, and validating the Dizziness Handicap Inventory (DHI) among Telugu-speaking individuals.Methods: The DHI in English was translated into Telugu language with the help of qualified and expert professionals, who use Telugu as their mother tongue. After following content validation, the final DHI-Telugu was administered to 136 participants (62 males and 74 females) aged between 21 to 70 years with complaints of dizziness /vertigo. Statistical analysis was performed in which Cronbach Alpha, internal consistency, and test-retest reliability were assessed among the psychometric properties of the DHI-Telugu.Results: The overall Cronbach’s alpha is 0.92 for the total score. The internal consistency of three subscales i.e. physical (0.77), emotional (0.77), and functional (0.84) respectively. The overall ICC (Cronbach’s Alpha) value is 0.92 to 0.93 for pre-and post-database, demonstrating high internal consistency and reliability of the DHI-Telugu questionnaire.Conclusion: The excellent psychometric properties of the Dizziness Handicap Inventory in the Telugu version?.