The study is going to determine whether the noise attenuation attained with the use of earplugs can be improved by teaching the proper insertion of earplugs to users and comparison of the effect of this training with using an ear plug with higher than needed NRR (Noise reduction rate).

Recruiting

• Conditions: oise-induced hearing loss; Noise-induced hearing loss; Ear - Normal ear development and function; Public Health - Health promotion/education

• Registration Number: ACTRN12612001204831
• Lead Sponsor: shahid sadoughi university of medical science

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2012-11-15
• Last Update Posted: 13 January 2020

Recruitment & Eligibility

• Status: Recruiting
• Sex: All
• Target Recruitment: 150

Inclusion Criteria

All workers referred to the clinic for pre-employment evaluation

Exclusion Criteria

men who used earplugs in noisy places previously

who have conductive or sensorineural hearing loss in base audiometry

Study & Design

• Study Type: Interventional
• Study Design: Not specified