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Comparative Efficacy of Earplug Usage Instruction
Sponsor: Sirinthorn Chanaveroj
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-week follow-up? Researchers will compare a video-based instruction group to a paper-based instruction group to see if one training format leads to better and more lasting earplug insertion skill, as measured by a standardized 20-point observational checklist. Participants will: * Undergo a baseline history and ear exam (otoscopy) and complete a demographic questionnaire . * Have their baseline earplug insertion skill assessed by a blinded observer Be randomly assigned to receive either a 5-minute video-based or paper-based instruction on proper earplug use . * Practice inserting earplugs and then be reassessed immediately after training * Return after 1 week for a follow-up assessment to test retention of the skill
Official title: Comparative Efficacy of Earplug Usage Instruction : A Randomized Trial of Video-Based And Paper-Based Instruction
Key Details
Gender
All
Age Range
20 Years - 60 Years
Study Type
INTERVENTIONAL
Enrollment
64
Start Date
2026-06-08
Completion Date
2026-08-31
Last Updated
2026-07-28
Healthy Volunteers
Yes
Interventions
Video-Based Earplug Instruction
A 3-minute narrated video demonstrating proper earplug insertion technique, covering hand hygiene, checking earplugs, proper rolling technique, ear canal opening, insertion method, adjustment, and verification of fit. Content is standardized and validated by content experts.
Paper-Based Earplug Instruction
An illustrated step-by-step infographic with brief written instructions covering identical content to the video-based module (hand hygiene, earplug preparation, insertion technique, and fit verification), reviewed and validated by content experts.
Locations (1)
Department of Otolaryngology Faculty of Medicine, Chiang Mai University
Chiang Mai, Thailand