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KMID : 1039220220320020116
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Journal of Korean Society of Occupational and Environmental Hygiene
2022 Volume.32 No. 2 p.116 ~ p.128
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Effects of Working Postures on Headache/Eye Strain in Korean Waged Workers: The 5th Working Condition Survey(2017)
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Kim You-Hyun
Koh Seok-Jae
Cho Kyung-Min
Chae Jin-Kyeong
Oh Hyun-Jeong
Chang Sei-Jin
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Abstract
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Objectives: The aim of this study was to examine the association of working posture with headache/eye strain in Korean waged workers.
Methods: Data were collected from the 5th Korean Working Condition Survey. A total of 30,955 workers participated in this
study. A four-items of working postures were measured using a 7-point Likert scale, and we categorized them into three groups (‘normal’, ‘moderate’, and ‘severe’) each 4 items. Headache/eye strain were measured using a self-administrative questionnaire (‘yes’ vs. ‘no’). To examine the relationship between the total working postures score and headache/eye strain, we summed a 4-items of working postures. It was categorized into five groups according to the severity of exposures(‘normal’, ‘mild’, ‘moderate’, ‘severe’, and ‘very severe’). The multivariate logistic regression analysis was performed using the IBM SPSS(Ver. 25), and a p<.05 was considered significant.
Results: The results show that ‘fatiguing and painful posture’ and ‘posture repetitively using hands or arms’ were associated with headache/eye strain after controlling for control variables. The total working posture score was positively associated with headache/eye strain. People with higher levels of the total working posture score were more likely to increase the risk of headache/eye strain compared to those of normal(OR: 1.844, 95% CI: 1.549~2.195 for ‘mild’; OR: 2.564, 95% CI: 2.152~3.503 for ‘moderate’; OR: 4.140, 95% CI: 3.432~4.994 for ‘severe’; OR: 7.613, 95% CI: 5.625~10.304 for ‘very severe’) (p<.05 for trend).
Conclusions: These results indicate that inappropriate working postures might play a crucial role in developing headache/eye strain. It is needed to improve the working environment, especially focusing on reducing inappropriate working posture at the organizational level.
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KEYWORD
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headache/eye strain, Korean Working Condition Survey, waged workers, working posture
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