Comparative study of heat-related symptoms among indoor and outdoor informal workers: A pilot study in Dhaka, Bangladesh.

Sheikh Mohiuddin Shahrujjaman, Bivuti Bhushan Sikder, Dilara Zahid, Syed Irfan Uddin

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Article in The journal of climate change and health. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 authors.

Sheikh Mohiuddin ShahrujjamanInstitute of Disaster Management and Vulnerability Studies, University of Dhaka, Dhaka 1000, Bangladesh.

Bivuti Bhushan SikderInstitute of Disaster Management and Vulnerability Studies, University of Dhaka, Dhaka 1000, Bangladesh.

Dilara ZahidInstitute of Disaster Management and Vulnerability Studies, University of Dhaka, Dhaka 1000, Bangladesh.

Syed Irfan UddinInstitute of Disaster Management and Vulnerability Studies, University of Dhaka, Dhaka 1000, Bangladesh.

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6 · The paper itself

Abstract

Introduction: Rising temperatures and increasing extreme heat events pose severe health risks to informal workers, particularly those engaged in labor-intensive occupations. This pilot study investigates the comparative prevalence of heat-related symptoms among indoor and outdoor informal workers in Dhaka, Bangladesh, identifies key sociodemographic and occupational risk factors, and examines the association between heat stress and heat stroke. Methods: A cross-sectional study was conducted among 416 informal workers using structured interviews. Temperature data were obtained from the Bangladesh Meteorological Department and satellite imagery. Heat-related symptoms were assessed using a validated questionnaire, and statistical analyses included independent Results: Weakness/tiredness (82.45 %), heavy sweating (94.47 %), and headaches (68.75 %) were the most commonly reported symptoms. Outdoor workers exhibited significantly higher symptom scores than indoor workers ( Conclusions: This pilot study underscores the urgent need for targeted heat adaptation strategies, including workplace cooling measures, rest breaks, and hydration access, to mitigate occupational health risks among informal workers in rapidly urbanizing regions.

Indexed as

Climate extremesHeat-related symptomsHeat strokeIndoor and outdoor workersInformal workerOccupational health

Identifiers

PMID41647869

DOI10.1016/j.joclim.2025.100576

PMCPMC12851249

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LicenceCC BY-NC-ND

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