A Multilevel Intervention to Prevent Noise Exposure in Farmworkers

Starting soon · Not applicable

Conditions studied: Noise Exposure, Hearing Loss, Noise-Induced, Occupational Exposure

In brief

This study will test a program to reduce noise exposure and prevent hearing loss among farmworkers. Farmworkers are often exposed to high levels of noise from machinery, which can lead to hearing loss over time. Farms will be randomly assigned to either receive the program or serve as a comparison group. The program includes a short educational video, group discussion, and hands-on training on how to use hearing protection (such as earplugs). Supervisors will also receive brief training on how to support hearing protection use in the workplace. Participants will wear a small device (dosimeter) during a work shift to measure noise exposure before the program and again about one month later. Participants will also complete surveys about their knowledge, attitudes, and behaviors related to hearing protection. A subset of participants will be invited to take part in interviews to understand barriers and facilitators to using hearing protection and implementing the program. The results of this study will help inform future efforts to improve hearing health and reduce noise exposure in agricultural settings.

Key facts

Study ID

NCT07554378

Run by

San Diego State University

People needed

200

Starts

2026-10-01

Expected to finish

2032-07-01

Last updated by the study team

2026-04-28

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• 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

You may not qualify if…

• 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 is running

• San Diego State University — San Diego, California, United States

Full record on ClinicalTrials.gov

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