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The relation between exposure to heat stress in the workplace and the degree of fatigue complaints was investigated by a questionnaire (composed of 30 items) among 39 assembly line workers in an electronic factory in Hanoi, Vietnam. There is a considerable difference in the change of fatigue complaints before and after work between workers exposed to heat and those not exposed. Among the workers not exposed to heat stress, the rate of fatigue complaints increased in 8 items, all of which did not show any statistically significant change during the work. In the case of workers under heat stress, the rate increased in 25 items, of which nine showed statistically significant increase after working hours. Especially, the changes were more apparent among the items corresponding to 'drowsiness and dullness'. A special consideration must be paid to heat stress in tropical countries such as Vietnam, in order to prevent occupational impairment.

nihon nettai igakkai zasshi/japanese journal of tropical medicine and hygiene

A Study of Fatigue Complaints among Workers Exposed to Heat Environment in an Electronic Company in Hanoi, Vietnam.A Study of Fatigue Complaints among Workers Exposed to Heat Environment in an Electronic Company in Hanoi, Vietnam.