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KMID : 1156220230490060372
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Journal of Environmental Health Sciences
2023 Volume.49 No. 6 p.372 ~ p.379
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Association between Exposure to Organic Solvents and Symptom of Headache and Eyestrain among Laundry Workers: Analysis of the 6th Korean Working Conditions Survey Data
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Jeong Hyun-Sun
Lee Kyoung-Mu
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Abstract
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Background: Laundry workers are known to be exposed to organic solvents in various works including dry cleaning. Long-term exposure to organic solvents may cause adverse health effects among laundry workers.
Objectives: To investigate the association between exposure to organic solvents and symptom of headache or eyestrain among laundry workers.
Methods: The subjects were total 267 laundry workers who participated in the 6th Korean Working Conditions Survey (KWCS). Responses to exposure to ‘inhalation of vapor from organic solvent’ was categorized into two (non-exposed: rarely or absolutely not exposed during working hours; exposed: ≥1/4 working hours) or three (non-exposed; low exposure: 1/4 of the working hours; high exposure: ≥1/2 working hours) groups. Logistic regression analysis was performed to evaluate the association between exposure to organic solvents and symptom of headache or eyestrain in the last 12 months among laundry workers.
Odds ratios (ORs) and the 95% confidence intervals (CIs) were calculated for experience of the symptom of headache or eyestrain with adjustment for age, sex, education, workplace size (by the number of workers), working hours per week, and current working period (year).
Results: The proportions of exposure groups, i.e., non-exposed, low exposure, and high exposure, were 80.4%, 11.1%, and 8.5%, respectively. The proportion of those who had symptom of headache or eyestrain in the last 12 months was 18.7%. There was a significant association between exposure to organic solvents and experience of headache or eyestrain (OR=3.2, 95% CI=1.4~7.4). And, the proportion of those who experienced symptom of headache or eyestrain tended to increase significantly as the level of exposure to organic solvents increased (Ptrend=0.002).
Conclusions: Our results suggest that exposure to organic solvents are associated with symptom of headache or eystrain among laundry workers in Korea. However, further studies with more relevant design is needed to replicate the association.
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KEYWORD
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Laundry workers, organic solvents, headache, eyestrain, the 6th Korean Working Conditions Survey (KWCS)
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