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Comparative Efficacy of Earplug Usage Instruction

NCT07731321 · Status: ENROLLING_BY_INVITATION · Phase: NA · Type: INTERVENTIONAL · Enrollment: 64

Last updated 2026-07-28

No results posted yet for this study

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

Conditions

  • Noise-Induced Hearing Loss
  • Hearing Protection Device Use
  • Noise-exposed Hospital Personnel

Interventions

BEHAVIORAL

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.

BEHAVIORAL

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.

Sponsors & Collaborators

  • Chiang Mai University

    collaborator OTHER

  • Sirinthorn Chanaveroj

    lead OTHER

Principal Investigators

  • sirinthorn chanaveroj · Department of Otolaryngology , Faculty of medicine Chiang Mai university

Study Design

Allocation
RANDOMIZED
Purpose
OTHER
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
20 Years
Max Age
60 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2026-06-08
Primary Completion
2026-06-30
Completion
2026-08-31

Countries

  • Thailand

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07731321 on ClinicalTrials.gov