U.S., July 29 -- ClinicalTrials.gov registry received information related to the study (NCT07731321) titled 'Comparative Efficacy of Earplug Usage Instruction' on July 11.

Brief Summary: The goal of this clinical trial is to learn whether video-based training or paper-based training is more effective at teaching correct earplug insertion technique, in hospital personnel at Maharaj Nakorn Chiang Mai Hospital who work in noise-exposed areas (e.g. laundry and kitchen units), aged 20-60 years. The main questions it aims to answer are:

1. Which training method ,between video-based and paper-based instruction, produces better earplug insertion skill immediately after training?

2. Is any improvement in earplug insertion skill sustained at 1-wee...