Adaptation and Validation of Voice Handicap Index-Punjabi.

Patients with Voice problems are frequently encountered in clinics. There is no tool available in Punjabi language for evaluation of impact of voice disorder on patient's life. The aim of this study was to adapt Voice Handicap Index in Punjabi language and to obtain validity, reliability and consistency of the developed tool. The study also aims to compare the scores of VHI-Punjabi between patients with voice problems and asymptomatic age-matched controls. The study follows qualitative research design with purposive sampling. The study was conducted at the Audiology and SLP unit of ENT, Guru Gobind Singh Medical College and Hospital, Faridkot, Punjab. A total of 200 subjects in the age group of 20-50 years were included, 100 each in study and control group. Combination of reverse translation, committee, and bilingual models were used for development of VHI-Punjabi. The construct validity was very good (r = 0.91). A statistically significant difference (p < 0.001) was obtained between the study group and control group in all the subtest scores and on the total scores of VHI-Punjabi. Statistical significant correlation is found in two administrations of VHI-Punjabi after a gap of 2 weeks in both study group and control group (p < 0.001). To find the internal consistency of VHI-Punjabi, Chronbach alpha was calculated, which came to be 0.97. The internal consistency was high. The results of the present study indicate that VHI-Punjabi is a valid and reliable tool that can be used for evaluation of patients with different types of voice problems.