{"title":"预测热诱发生理应变和脱水的男性农业工人在印度东部：气候变化的影响。","authors":"Aditya Nath, Subhashis Sahu","doi":"10.1097/JOM.0000000000003543","DOIUrl":null,"url":null,"abstract":"<p><strong>Objective: </strong>This study appraised hourly physiological strain and dehydration risk among male agricultural workers during summer paddy harvesting in eastern India, and examined associations with Wet Bulb Globe Temperature (WBGT) and individual-level risk factors.</p><p><strong>Methods: </strong>A cross-sectional study was conducted among 200 adult males using purposive sampling over 40 days (April-June 2024) in West Bengal. Hourly WBGT, heart rate, and aural canal temperature were recorded to calculate the physiological strain index (PSI). Hydration status was assessed using urine specific gravity. Multiple linear regression identified PSI predictors.</p><p><strong>Results: </strong>WBGT steadily predicted PSI; age amplified strain, work experience showed protection across all five hours (p < 0.001). Dehydration amplified from 16.5% to 33% (p < 0.001), and excessive sweating doubled the risk.</p><p><strong>Conclusions: </strong>Prolonged occupational heat exposure augments physiological strain and dehydration, emphasizing the need for urgent heat mitigation approaches in agricultural workforces.</p>","PeriodicalId":94100,"journal":{"name":"Journal of occupational and environmental medicine","volume":" ","pages":""},"PeriodicalIF":1.4000,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Predicting Heat-Induced Physiological Strain and Dehydration among Male Agricultural Workers in Eastern India: Implications of Climate Change.\",\"authors\":\"Aditya Nath, Subhashis Sahu\",\"doi\":\"10.1097/JOM.0000000000003543\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Objective: </strong>This study appraised hourly physiological strain and dehydration risk among male agricultural workers during summer paddy harvesting in eastern India, and examined associations with Wet Bulb Globe Temperature (WBGT) and individual-level risk factors.</p><p><strong>Methods: </strong>A cross-sectional study was conducted among 200 adult males using purposive sampling over 40 days (April-June 2024) in West Bengal. Hourly WBGT, heart rate, and aural canal temperature were recorded to calculate the physiological strain index (PSI). Hydration status was assessed using urine specific gravity. Multiple linear regression identified PSI predictors.</p><p><strong>Results: </strong>WBGT steadily predicted PSI; age amplified strain, work experience showed protection across all five hours (p < 0.001). Dehydration amplified from 16.5% to 33% (p < 0.001), and excessive sweating doubled the risk.</p><p><strong>Conclusions: </strong>Prolonged occupational heat exposure augments physiological strain and dehydration, emphasizing the need for urgent heat mitigation approaches in agricultural workforces.</p>\",\"PeriodicalId\":94100,\"journal\":{\"name\":\"Journal of occupational and environmental medicine\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":1.4000,\"publicationDate\":\"2025-09-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of occupational and environmental medicine\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1097/JOM.0000000000003543\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of occupational and environmental medicine","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1097/JOM.0000000000003543","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Predicting Heat-Induced Physiological Strain and Dehydration among Male Agricultural Workers in Eastern India: Implications of Climate Change.
Objective: This study appraised hourly physiological strain and dehydration risk among male agricultural workers during summer paddy harvesting in eastern India, and examined associations with Wet Bulb Globe Temperature (WBGT) and individual-level risk factors.
Methods: A cross-sectional study was conducted among 200 adult males using purposive sampling over 40 days (April-June 2024) in West Bengal. Hourly WBGT, heart rate, and aural canal temperature were recorded to calculate the physiological strain index (PSI). Hydration status was assessed using urine specific gravity. Multiple linear regression identified PSI predictors.
Results: WBGT steadily predicted PSI; age amplified strain, work experience showed protection across all five hours (p < 0.001). Dehydration amplified from 16.5% to 33% (p < 0.001), and excessive sweating doubled the risk.
Conclusions: Prolonged occupational heat exposure augments physiological strain and dehydration, emphasizing the need for urgent heat mitigation approaches in agricultural workforces.
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