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NCT07731321

Overview

NCT ID: NCT07731321
Lead Sponsor: Sirinthorn ChanaverojOTHER
Official Title: Comparative Efficacy of Earplug Usage Instruction : A Randomized Trial of Video-Based And Paper-Based Instruction
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:

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

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

Status and Timeline

Status: Enrolling by invitation
Last Update Posted: Jul 28, 2026Actual
Start Date: Jun 8, 2026Actual
Primary Completion Date: Jun 30, 2026Actual
Completion Date

Participation Criteria

Ages Eligible for Study: Adult (18-64)
Sexes Eligible for Study: All
Accepts Healthy Volunteers?: Yes
Eligibility Criteria: Inclusion Criteria:

Personnel aged 20-60 years old who report regular works in areas perceived as noisy department

Personnel who works at Maharaj Nakorn Chiang Mai Hospital, Faculty of Medicine, Chiang Mai University, during the year 2026.

Personel who is willing and able to participate in the study throughout its duration.

Exclusion Criteria:

Individuals with active ear infections.

Individuals with ear canal stenosis that limit to insert the earplug.

Individuals with visual or auditory impairment that limit to read or see the instruction

Individuals who have limitation to use their hands to insert the ear plug.

Study Plan

Study Type: Interventional
Phase: Not Applicable
Enrollment: 64Estimated
Primary Purpose: Other
Allocation: Randomized
Interventional Model: Parallel Assignment
Masking: Single

Contacts and Locations

Central Contacts: No data available
Locations: Department of Otolaryngology Faculty of Medicine, Chiang Mai University

Similar Studies

Participant Group/Arms

Arm 1 : Video-Based Earplug InstructionExperimental

Arm 1 * Arm Label: Video-based instruction * Arm Type: Experimental * Arm Description: Participants receive a 3-minute narrated video demonstrating proper earplug insertion technique, followed by practice and assessment.

Behavioral: Video-Based Earplug Instruction

Arm 2 : Paper-Based Earplug InstructionActive Comparator

Arm 2 * Arm Label: Paper-based instruction * Arm Type: Active Comparator * Arm Description: Participants receive a paper-based illustrated infographic with written instructions covering identical content to the video, followed by practice and assessment.

Behavioral: Paper-Based Earplug Instruction