About this trial
This study will evaluate a farmworker-level hearing loss prevention training designed to improve hearing protection use among farmworkers exposed to hazardous occupational noise. The intervention consists of a culturally and linguistically adapted, Spanish-language digital training module paired with hands-on earplug fitting and coaching.
The primary goals of the study are to (1) assess the feasibility and acceptability of delivering the adapted training in community-based settings, and (2) estimate preliminary effectiveness using an objective measure of hearing protection fit. The study uses a single-arm, pre-post pilot design.
A small group of farmworkers will complete pre- and post-training assessments of earplug fit, as well as brief surveys assessing hearing protection knowledge, attitudes, and perceptions. Qualitative feedback will be collected to inform refinement of the training and guide future scale-up.
Results will inform the development of a subsequent multilevel intervention that integrates supervisor and organizational components.
Eligibility criteria
Qualifiers
Adults aged 18 years or older
Currently employed as a farmworker in agricultural settings with routine exposure to occupational noise
Able to understand and provide informed consent in Spanish or English
Disqualifiers
Not currently employed as a farmworker
Medical or ear conditions that preclude safe use of foam earplugs (e.g., acute ear infection, recent ear surgery)
Inability to complete study procedures as determined by study staff
Trial design
Treatments tested in this trial
- Farmworker Hearing Protection Training
Treatment groups
Locations
Sponsors and collaborators
San Diego State University
Lead sponsor
National Institute on Deafness and Other Communication Disorders (NIDCD)
Collaborator