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Ocular, Respiratory and Skin Symptoms Among Solderers Employed in Printed Circuit Board Assembly Units
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Jay Young Yu, Kuck Hyeun Woo, Jin Seok Kim, Jung Oh Ham, Tae Sung Choi, Bong Goo Ha, Sang Je Jung, Shin Goo Park, Il Ryong Kim
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Korean Journal of Occupational and Environmental Medicine 2001;13(4):423-435. Published online December 31, 2001
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DOI: https://doi.org/10.35371/kjoem.2001.13.4.423
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Abstract
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This study was conducted to evaluate the prevalence of ocular, respiratory and skin symptoms among solderers and to investigate the relationship between symptom prevalence and exposure intensity. METHODS We analyzed 126 eligible participants out of a population of 146 male solderers who completed the symptom questionnaires. Fourteen symptoms including 'itchy and red eyes', 'itchy or prickly nose', 'sneezing', 'rhinorrhea', 'blocked nose', 'pricklythroat', 'foreign body sensation in throat', 'sudden bouts of coughing', 'exertional breathlessness ', 'wheezing', 'sputum production', 'itchy face or hands', 'acneiform eruptions on the face'and 'red spots on the face or hands'were contained. Blood lead levels of all the 126 participants were tested and the participants'own assessments of the health risk of soldering were collected. RESULTS Of the 14 investigated symptoms, 'sudden bouts of coughing'was significantly more prevalent in solderers who worked 4 hours or more a day than those who worked less than 4 hours a day, as for the other symptoms, there were no significant differences in the preva1ences related to daily soldering hours. 2.8% of the solderers considered the risk of flux exposure to be serious. The mean blood lead level was 6.05 microgram/dL (maximum 15.50 microgram /dL). CONCLUSIONS Soldering may increase the risk of respiratory symptoms. Further investigations on the hazards of soldering processes are warranted and solderers should be educated on these hazards.
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- Skin Disease Among Staff in a Large Korean Nursing Home.
DEREK RICHARD SMITH, JAE-WOOK CHOI, DONG-SOO YU, MYUNG KI, CHUN-HWA OH, ZENTARO YAMAGATA The Tohoku Journal of Experimental Medicine.2002; 198(3): 175. CrossRef
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The Relationship between psychosocial stress and Work-related Musculoskeletal Symptoms of Assembly Line Workers in the Automobile industry
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Il Ryong Kim, Jae Young Kim, Jong Tae Park, Jae Wook Choi, Hae Joon Kim, Yong Tae Yeom
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Korean Journal of Occupational and Environmental Medicine 2001;13(3):220-231. Published online September 30, 2001
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DOI: https://doi.org/10.35371/kjoem.2001.13.3.220
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Abstract
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To determine the relationship between stress Factors and work-related musculoskeletal symptoms of assembly line workers in the automobile industry. METHODS A cross-sectional study was conducted in two Factories of automobile manufacturing companies where inappropriate posture and repetitive motions were required. The total number of subjects was 636, and consisted entirely of men. The Age, length of work duration, marital status, education level, smoking status, drinking status, sleeping time and stress scores were investigated according to subgroups of general characteristics. We divided the subjects into a Reference group and a Stress risk group to compare the frequency of the variables between them. The stress scores of the Positive symptom group were compared with the Symptom free group by the t-test. To measure the stress level, the PWI(Psychosocial Well being Index) which consists of 4 Factors, totaling 45 items, was used. A standardized self-reported questionnaire was used to assess the symptoms in workers. The criteria for positive symptoms were based on Operational Definition of Work-related Musculoskeletal Disorders of the NIOSH. RESULTS 1) The subgroups of Age, Work duration, Marital status, Education level, Smoking status, Drinking status and Sleeping time revealed no differences in frequencies in musculoskeletal symptoms. 2) Higher PWI(p<0.05), Factor 3(p<0.05) and Factor 4(p<0.01) scores were observed in younger workers compared with older workers. 3) The workers who had work durations between 11-15 years showed higher PWI(p<0.01), Factor 2(p<0.01), Factor 3(p<0.01), and Factor 4(p<0.01), compared with other work duration subgroups. 4) Singles had higher Factor 4 scores(p<0.01). 5) The sleeping time of less than 6 hours a day expressed a higher PWI(p<0.01), Factor 2(p<0.05), and Factor 3(p<0.01), Factor 4(p<0.05). 6) There was no difference in the prevalence of musculoskeletal symptoms between the Reference group and Stress risk group. 7) The subjects who had Positive musculoskeletal symptoms showed a significant difference in Factor 2 scores compared with the Symptom free groups. 8) According to a univariate logistic regression analysis, Factor 2(OR: 1.02, 95% CI: 1.00-1.04, p-value: 0.0291) expressed significant but mild effects on the musculoskeletal symptoms and a multivariate logistic regression showed a statistically significant effect on musculoskeletal symptoms(OR:1.04, 95% CI: 1.01-1.07, p-value: 0.0170). CONCLUSION Psychosocial stress scores were not higher in symptomatic subjects compared with those who had no symptoms. Sleeping longer showed a protective effect on symptoms but this was not statistically significant. There was no relationship between the stress scores and musculoskeletal symptoms in social performance and self-confidence, general well-being and vitality. Factor 2(Depression) was statistically significant though its effect was mild. Limited to this study, We could find partial relationship between psychosocial stress(Depression) and musculoskeletal symptoms. So it could therefore be suspected that ergonomic or other unknown factors may be more significant causes of musculoskeletal symptoms but we did not investigate these.
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- Musculoskeletal Disorder Symptoms and Its Related Factors among Male Workers in Manufacturing Industries
Seung-Hyun Lee, Young-Chae Cho Journal of the Korea Academia-Industrial cooperation Society.2015; 16(10): 6627. CrossRef - A Study on the Work Ability and the Job Stress of the Workers in Manufacturing Industry of Automobile Parts
Yun-Soo Mok, Dong Won Lee, Seong Rok Chang Journal of the Korean Society of Safety.2013; 28(3): 100. CrossRef - Musculoskeletal Disorder Symptoms and Related Factors among Male Workers in Small-scale Manufacturing Industries
Seung-Hyun Lee, Ju-Yeon Lee, Young-Chae Cho Journal of the Korea Academia-Industrial cooperation Society.2012; 13(9): 4025. CrossRef - Work-related Musculoskeletal Disorders among Agricultural Workers
Soo-Jin Lee, Hwan-Jin Park Journal of the Ergonomics Society of Korea.2011; 30(4): 525. CrossRef
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