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Title: Heat Stress and Thermal Perceptions Amongst Healthcare Workers During the COVID-19 Pandemic in Developed and Developing Countries
Authors: Lee, Jimmy 
Venugopal, Vidhya
Latha, PK
Alhadad, Sharifah 
Leow, Clarence 
Goh, NYD 
Tan, E
Kjellstrom, Tord
Morabito, M
Lee, Jason Kai Wei 
Keywords: PPE
climate change
worker protection
KAP survey
mitigation strategies
Issue Date: 3-Nov-2020
Publisher: Elsevier BV
Citation: Lee, Jimmy, Venugopal, Vidhya, Latha, PK, Alhadad, Sharifah, Leow, Clarence, Goh, NYD, Tan, E, Kjellstrom, Tord, Morabito, M, Lee, Jason Kai Wei (2020-11-03). Heat Stress and Thermal Perceptions Amongst Healthcare Workers During the COVID-19 Pandemic in Developed and Developing Countries. SSRN Electronic Journal. ScholarBank@NUS Repository.
Abstract: The need for healthcare workers (HCWs) to wear personal protective equipment (PPE) during the coronavirus disease 2019 (COVID-19) pandemic heightens their risk of thermal stress. We assessed the knowledge, attitudes, and practices of HCWs from India and Singapore regarding PPE usage and heat stress when performing treatment and care activities. One hundred sixty-five HCWs from India (n = 110) and Singapore (n = 55) participated in a survey. Thirty-seven HCWs from Singapore provided thermal comfort ratings before and after ice slurry ingestion. Differences in responses between India and Singapore HCWs were compared. A p-value cut-off of 0.05 depicted statistical significance. Median wet-bulb globe temperature was higher in India (30.2 ◦C (interquartile range [IQR] 29.1–31.8 ◦C)) than in Singapore (22.0 ◦C (IQR 18.8–24.8 ◦C)) (p < 0.001). Respondents from both countries reported thirst (n = 144, 87%), excessive sweating (n = 145, 88%), exhaustion (n = 128, 78%), and desire to go to comfort zones (n = 136, 84%). In Singapore, reports of air-conditioning at worksites (n = 34, 62%), dedicated rest area availability (n = 55, 100%), and PPE removal during breaks (n = 54, 98.2%) were higher than in India (n = 27, 25%; n = 46, 42%; and n = 66, 60%, respectively) (p < 0.001). Median thermal comfort rating improved from 2 (IQR 1–2) to 0 (IQR 0–1) after ice slurry ingestion in Singapore (p < 0.001). HCWs are cognizant of the effects of heat stress but might not adopt best practices due to various constraints. Thermal stress management is better in Singapore than in India. Ice slurry ingestion is shown to be practical and effective in promoting thermal comfort. Adverse effects of heat stress on productivity and judgment of HCWs warrant further investigation.
Source Title: SSRN Electronic Journal
ISSN: 1556-5068
DOI: 10.2139/ssrn.3679993
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