Multilevel program to reduce noise exposure and protect hearing for farmworkers
Official title: A Multilevel Intervention to Prevent Noise Exposure in Farmworkers
Run by San Diego State University · NCT07554378 · Data updated 2026-11-12
A program with training and gear will be tested to see if it lowers workers' noise exposure and helps prevent hearing loss among farmworkers.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 200 (estimated) |
| Sponsor | San Diego State University Academic / other |
| Locations | 1 site (San Diego, California) |
| Status | Recruiting |
| Started | October 30, 2026 |
| Main results expected | January 2031 |
| Study ends | July 2032 |
| Registry record updated | November 9, 2026 |
| Trial ID | NCT07554378 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults 18 or older who are farmworkers or supervisors at participating farms and can communicate in Spanish or English.
✕Probably not a fit
Participants unable to wear a dosimeter or complete study procedures may not benefit from the program.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This cluster randomized trial assigns whole farms to either receive a multilevel intervention or act as a control. The intervention includes a short educational video, group discussions, hands-on training on using hearing protection, and supervisor training to support safe practices. Personal dosimeters will measure noise exposure at baseline and about one month after the intervention, while surveys assess knowledge, attitudes, and protective behaviors. A subset will participate in interviews to identify barriers and facilitators to using hearing protection. Outcomes cover worker exposure, knowledge and behaviors, supervisor support, and worksite safety practices.
Why it matters
Potential benefit: If successful, farmworkers could experience lower noise exposure and better protection against hearing loss.
How similar studies have gone: Prior similar approaches have shown promise in improving hearing protection behaviors, but this exact multilevel, farm-based design is relatively novel.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Age 18 years or older * Currently employed as a farmworker or supervisor at a participating farm * Able to provide informed consent * Able to understand and communicate in Spanish or English Exclusion Criteria: * Not currently working at a participating farm at the time of recruitment * Unable or unwilling to wear a personal noise dosimeter during a work shift * Unable to complete study procedures (e.g., surveys or training)
Where it's running
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San Diego State University
San Diego, California, United States Recruiting
Study contacts
- Study coordinator: Laura Coco, PhD, AuD
- Email: lcoco@sdsu.edu
- Phone: 16195943151
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.