A Multi-Level Approach to Heat-Related Illness Prevention in Agricultural Workers

NCT ID: NCT04234802

Last Updated: 2022-05-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

86 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-05-22

Study Completion Date

2021-09-30

Brief Summary

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The project's primary aim is to evaluate the effectiveness of a multi-level heat prevention approach in reducing adverse heat health effects in outdoor agricultural workers

The secondary aims are to:

* Test the effectiveness of an individual-level training component designed to reduce adverse heat health effects in outdoor agricultural workers
* Evaluate the effectiveness of a workplace supervisor-level heat awareness application intended to support supervisor decisions to reduce the risk of workers experiencing adverse heat health effects

Detailed Description

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Conditions

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Heat Stress Disorders

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

The study is a parallel, comparison, group intervention study to evaluate the effectiveness of a multi-level Heat Education and Awareness Tools (HEAT) intervention, consisting of worker training and a supervisor heat awareness application, on reducing adverse heat health effects in agricultural workers across a growing season.
Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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HEAT intervention group

Workers in the intervention group will receive the HEAT training, and supervisors in the intervention group will receive the HEAT awareness application and training on how to use it.

Group Type ACTIVE_COMPARATOR

Heat Education and Awareness Tools

Intervention Type OTHER

HEAT training will be delivered to agricultural workers by research staff in this study in the spring. HEAT training uses interactive approaches to engage participants and posters with visuals. Training covers types of heat-related illness and treatments, risk factors, appropriate clothing and hydration, and keeping cool in the home and community. The HEAT awareness application was developed in collaboration with Washington State University's AgWeatherNet Program to notify supervisors signed up for the service about hot weather conditions that might increase the risk for adverse health effects for workers. The HEAT awareness application is designed to allow subscribers to select weather stations of interest and view current heat indices as well as maximum daily heat indices forecasted over the following week. This information is coupled with information about health effects and prevention of adverse heat health effects. Materials are provided in English and Spanish.

Comparison group

The comparison group will not be offered HEAT trainings or the HEAT awareness application. They will be offered an alternative training on another topic.

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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Heat Education and Awareness Tools

HEAT training will be delivered to agricultural workers by research staff in this study in the spring. HEAT training uses interactive approaches to engage participants and posters with visuals. Training covers types of heat-related illness and treatments, risk factors, appropriate clothing and hydration, and keeping cool in the home and community. The HEAT awareness application was developed in collaboration with Washington State University's AgWeatherNet Program to notify supervisors signed up for the service about hot weather conditions that might increase the risk for adverse health effects for workers. The HEAT awareness application is designed to allow subscribers to select weather stations of interest and view current heat indices as well as maximum daily heat indices forecasted over the following week. This information is coupled with information about health effects and prevention of adverse heat health effects. Materials are provided in English and Spanish.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Speak English or Spanish, live in same dwelling and work at same farm for the season, farm where participant works must agree to collaborate
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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National Institute for Occupational Safety and Health (NIOSH/CDC)

FED

Sponsor Role collaborator

University of Washington

OTHER

Sponsor Role lead

Responsible Party

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June Spector

Associate Professor, Environmental and Occupational Health Sciences; Department of Medicine

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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June T Spector, MD, MPH

Role: PRINCIPAL_INVESTIGATOR

University of Washington

Locations

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Farms (confidential)

Yakima, Washington, United States

Site Status

Countries

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United States

References

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Chavez Santos E, Spector JT, Egbert J, Krenz J, Sampson PD, Palmandez P, Torres E, Blancas M, Carmona J, Jung J, Flunker JC. The effect of the participatory heat education and awareness tools (HEAT) intervention on agricultural worker physiological heat strain: results from a parallel, comparison, group randomized study. BMC Public Health. 2022 Sep 15;22(1):1746. doi: 10.1186/s12889-022-14144-2.

Reference Type DERIVED
PMID: 36104813 (View on PubMed)

Marquez D, Krenz JE, Chavez Santos E, Torres E, Palmandez P, Sampson PD, Blancas M, Carmona J, Spector JT. The Effect of Participatory Heat Education on Agricultural Worker Knowledge. J Agromedicine. 2023 Apr;28(2):187-198. doi: 10.1080/1059924X.2022.2058667. Epub 2022 Apr 17.

Reference Type DERIVED
PMID: 35345983 (View on PubMed)

Krenz J, Santos EC, Torres E, Palmandez P, Carmona J, Blancas M, Marquez D, Sampson P, Spector JT. The multi-level heat education and awareness tools [HEAT] intervention study for farmworkers: Rationale and methods. Contemp Clin Trials Commun. 2021 Jun 8;22:100795. doi: 10.1016/j.conctc.2021.100795. eCollection 2021 Jun.

Reference Type DERIVED
PMID: 34169175 (View on PubMed)

Other Identifiers

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2U54OH007544-16

Identifier Type: NIH

Identifier Source: secondary_id

View Link

STUDY00000238

Identifier Type: -

Identifier Source: org_study_id

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