Test of a Web-based Intervention to Promote Hearing Protector Use
1 other identifier
interventional
498
1 country
1
Brief Summary
The purpose of this project is to compare the effectiveness of several approaches to influencing hearing protector use. The goals of this study are to further develop an intervention to promote farmers' use of hearing protectors, and compare the effectiveness of the developed intervention with two alternative approaches to influencing hearing protector use behavior, delivered in various combinations. This study will determine if significant change in hearing protection use can be achieved in a one-shot web-based or protector-supply intervention. Results will determine the need for future program modifications, e.g., inclusion of booster(s).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Nov 2011
Typical duration for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
October 14, 2011
CompletedFirst Posted
Study publicly available on registry
October 19, 2011
CompletedStudy Start
First participant enrolled
November 1, 2011
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 1, 2014
CompletedStudy Completion
Last participant's last visit for all outcomes
October 1, 2014
CompletedOctober 5, 2015
October 1, 2015
2.9 years
October 14, 2011
October 1, 2015
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Hearing protector device (HPD) use
12 months
Secondary Outcomes (1)
hearing protector use-related attitudes/beliefs
12 months
Study Arms (6)
Interactive Web-based Info (IWI) & HPDs
EXPERIMENTALSubjects will receive interactive Web-based information regarding farm noise exposures, risks to hearing, and strategies for protecting hearing, as well as a mailed sample of various types of hearing protection devices.
Interactive Web-based Information (IWI)
EXPERIMENTALThis intervention includes a number of features/techniques designed to promote behavior change. Messages focus on farmer-friendly techniques for adopting use of HPDs. The factors found to be significant predictors of HPD use (Barriers to Use and Situational Factors Influencing HPD Use) are particularly relevant to farmers' learning needs, and are especially emphasized in this model-based intervention to increase hearing protector use among farmers. Participants will select the sequence of features they visit, as well as the time spent in each feature and number of visits to the site. Their patterns of use will be tracked by the enrollment and data collection systems and used in analysis.
Static Web information (SWI) & HPDs
EXPERIMENTALSubjects will receive static Web-based information regarding farm noise exposures, risks to hearing, and strategies for protecting hearing, as well as a mailed sample of various types of hearing protection devices.
Static Web information only
ACTIVE COMPARATORSubjects will receive interactive Web-based information regarding farm noise exposures, risks to hearing, and strategies for protecting hearing.
Hearing protection Devices only
EXPERIMENTALSubjects will receive a mailed sample of various types of hearing protection devices.
Interactive Web-based information only
OTHERused for cases enrolling after achievement of study enrollment goal
Interventions
In a pilot study, hearing protection devices were mailed to farmers, resulting in a significant increase in use. These results suggested that overall, HPDs were acceptable to farmers, and that access to HPDs may be an important contributor to frequency of use. The study will build on this earlier work by providing an assortment of hearing protection devices to a sub-sample of each group of farmers receiving the Interactive and Static Web Interventions. The assortment includes the most commonly used types of devices (i.e., muffs, foam plugs, pre-molded plugs, and semi-aurals). The sampler is delivered, together with manufacturers' standard written instructions for use, via mail at the designated time according study design.
The standard information promoting HPD use delivered via Internet will be based on an informational brochure previously developed for use by farmers (i.e., Have You Heard? and They're Your Ears Protect Them). These brochures, including color graphics and text, are available on the Internet (as PDF files). Although they have been printed and distributed by NIOSH, most farmers will not have been exposed to copies. There are important differences between the SWI and IWI interventions, including interactivity, animation, explication of farmer-generated tips and techniques for addressing common barriers to hearing protector use, use of color, audio, and video, hotlinks, and farmer testimonials.
This intervention includes a number of features/techniques designed to promote behavior change. Messages focus on farmer-friendly techniques for adopting use of HPDs. The factors found to be significant predictors of HPD use (Barriers to Use and Situational Factors Influencing HPD Use) are particularly relevant to farmers' learning needs, and are especially emphasized in this model-based intervention to increase hearing protector use among farmers. Participants will select the sequence of features they visit, as well as the time spent in each feature and number of visits to the site. Their patterns of use will be tracked by the enrollment and data collection systems and used in analysis.
Eligibility Criteria
You may qualify if:
- farm operators who are active in production at least half-time,
- speak English
- at least 18 years of age
- have Internet access.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Marjorie McCullaghlead
- National Institutes of Health (NIH)collaborator
Study Sites (1)
University of Michigan
Ann Arbor, Michigan, 48109, United States
Related Publications (2)
McCullagh MC, Banerjee T, Cohen MA, Yang JJ. Effects of interventions on use of hearing protectors among farm operators: A randomized controlled trial. Int J Audiol. 2016;55 Suppl 1(0):S3-12. doi: 10.3109/14992027.2015.1122239. Epub 2016 Jan 14.
PMID: 26766172DERIVEDMcCullagh MC, Ronis DL. Protocol of a randomized controlled trial of hearing protection interventions for farm operators. BMC Public Health. 2015 Apr 18;15:399. doi: 10.1186/s12889-015-1743-0.
PMID: 25927191DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Marjorie C. McCullagh, PhD
University of Michigan
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- FACTORIAL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR INVESTIGATOR
- PI Title
- Associate Professor
Study Record Dates
First Submitted
October 14, 2011
First Posted
October 19, 2011
Study Start
November 1, 2011
Primary Completion
October 1, 2014
Study Completion
October 1, 2014
Last Updated
October 5, 2015
Record last verified: 2015-10