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Objectives: Farmworkers who harvest and weed field crops are at increased risk for heat exposure and heat-related illness (HRI). The study objectives were to: (1) train crew leaders to use the Occupational Safety and Health Administration (OSHA) heat safety tool app and evaluate the utility of the app from a crew leader perspective; and (2) characterize heat safety knowledge, preventive practices, and perceptions of HRI risk among Hispanic farmworkers. Methods: Before harvest season, six crew leaders completed a 2-hour OSHA heat illness prevention training, including evaluation of a heat safety mobile app. Between August and October 2018, 101 Hispanic farmworkers participated in cross-sectional surveys about heat safety. Survey participants responded to questions about HRI prevention, HRI knowledge, and sociodemographics. Results: Crew leaders using the heat safety app rated the app very highly on relevance, functionality, value and privacy. Farmworkers did not report being overly concerned about HRI based on their survey responses. Nevertheless, 19% of farmworkers had experienced nonspecific symptoms from working in the heat, such as headache, dizziness, and nausea. In the multivariate linear regression model, farmworkers had lower heat safety knowledge scores if they were H-2A visa holders, female, and only "a little bit concerned," compared to others who were "very concerned" about working in the heat. Conclusion: The results of this study indicate the need for continued heat safety training for both crew leaders and farmworkers to reduce the risk of HRI, especially among less experienced farmworkers. [ABSTRACT FROM AUTHOR]

Heat-related illness (HRI) among migrant and seasonal farmworkers is an occupational risk addressed through varying mitigation strategies by individual workers and supervisors. The purpose of this pilot study was to describe farmworkers' experience with HRI prevention strategies and assess HRI information seeking preferences, especially the feasibility of using mobile phone apps to access this information. Five focus groups were administered to Hispanic farmworkers in South Carolina. Questions included the following topics: health information seeking preferences; farmworkers' perceptions of occupational risks; coping strategies; past experiences with HRIs; water, rest, and shade practices; access to health care; and any employer-provided training received. There was consensus across the groups that the workers at highest risk for HRIs were either inexperienced or new workers in the fields. Farmworkers ascribed responsibility for one's well-being while working in the heat more as an individual factor than as an employer's responsibility. Farmworkers received training on the OSHA Heat Safety Tool app and provided positive feedback about the educational content and temperature information warnings. These findings suggest the potential for supervisors to take a more active role in heat safety education using mobile technology. [ABSTRACT FROM AUTHOR]