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OpenTrials
Completed

NCT Number: NCT04234802

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

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

Completed

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Key information

Conditions

Heat Stress Disorders Wounds and Injuries

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Farms (confidential)

Yakima, Washington, 98902, United States

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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

Exclusion criteria

Treatment and study plan

Heat Education and Awareness Tools

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.

Primary outcomes

  1. Heat-related Illness Symptoms

    Time frame: Approximately three months

    Heat symptoms will be assessed using a short survey conducted in Spanish or English that includes questions about heat-related illness symptoms experienced over the past week. Participants will select one or more symptoms (or select 'none') from a list.

  2. Heat Strain

    Time frame: Approximately three months

    The body's physiological response to heat stress. Core body temperature (degrees C) will be estimated using personal baseline temperature and continuous heart rate during work shifts on several days.

Secondary outcomes

  1. Pre/post Knowledge Assessment

    Time frame: Approximately three months

    Short set of multiple-choice questions based on key points addressed in the one-hour training on recognition, treatment, and prevention of heat-related illness.

  2. Pre/post Supervisor Survey

    Time frame: Approximately three months

    Short set of interview questions to learn about heat safety practices and utilization of the HEAT awareness application for intervention group

Sponsors and collaborators

Lead sponsor

University of Washington

Other

Collaborators

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

Registry information

Important dates

Study start
2019
Primary completion
2021
Study completion
2021
First posted
Jan 21, 2020
Registry last updated
May 17, 2022

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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