• Journal of the Ergonomics Society of Korea
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• v.26 no.3
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• pp.1-9
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• 2007

The purpose of this study was going to research relation of job stress and society psychologic stress according to general characteristic, work characteristic, health characteristic and personality characteristic for the occupational therapist in the working domestic rehabilitation therapy with hospital and welfare center occupational therapist. The research was 91 of withdrawal questionnaire among 102 occupational therapist from 1. November 2005 to 31. December 2005. In the result of analysis the given question for the ninety one occupational therapist showed just normal group 25% 23 person, potential stress group 47% 43 person, and the rest 28% 25 person high risk group. The result shows significance different in general characteristic of job stress about age, final scholarship and marriage. Job stress was included income, working time, office form and working position etc. Health special job stress was significance different according to sleep time. So we have to know a fact of job stress of occupational therapist and prevent of loss of business services. And we have to endeavoring removals factor of stress and good office culture fixation.

• Journal of Distribution Science
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• v.17 no.9
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• pp.83-92
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• 2019

Purpose - This research is to verify job fitness, empowerment, and recognition of career development support having the influence on formation of occupational identity in Korean food franchise distribution company. Research design, data, and methodology - Total 600 copies have been distributed and 394 copies have been collected, the covariance structure analysis has been implemented to verify the presented research hypothesis. Results - Demand fit and competency fit being the lower level of job fitness appeared not to have significant influence on occupational identity, and also these do not have the significant influence on the empowerment. Even though formal career development support being lower level of career development recognition appeared to have significant influence on empowerment, nonformal career development support appeared not to have significant influence on empowerment. Formal career development support and nonformal career development support appeared to have significant influence on occupational identity. Finally, empowerment appeared to have significant influence on occupational identity. Conclusions - It is implied that the psychological and subjective success felt in employee's career course may be improved by the job related job fitness, the initiative being individual characteristic and formal and formless career development support being organizational characteristic.

• The Journal of the Korean life insurance medical association
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• v.27 no.2
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• pp.80-84
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• 2008

Now, we have experienced that the loss ratio of cancer insurance with prevalence of cancer increased. The insurance companies interest how the loss ratio of cancer insurance decrease. To decrease the loss of ratio of cancer, underwriting is very important. The underwriting of cancer are very important factors which are family history, habitual behavior and past history. We have spend the most of time under the occupational situation. Occupation may be very important factor causing cancer. But we neglect the occupation history. This article show how the underwriting of the occupational cancers in the field of occupation are managed Generally, Occupational cancers show special characteristic features. We know the characteristics of occupational cancer under the variety of occupation. For the underwriting of occupational cancer in Korea, we also understand the epidemiology of Korean occupational cancer with the varieties of occupation This article shows the characteristics of occupational cancer and epidemiology of Korean occupational cancers.

• Safety and Health at Work
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• v.10 no.3
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• pp.384-388
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• 2019

The horse stable hand workers are one of the most important occupations in horse-racing industry. However, suicide problem of the horse stable hand workers in Korea has raised the necessity of new study on how these workers experience mental health problems such as occupational stress and depression in organizational situation. Therefore, this study investigated the occupational stress and depression level of the horse stable hand workers and identified the structural relationship in the horse-racing industry through a detailed interview. A total of 207 horse stable hand workers participated in this study, and occupational stress and depression level were surveyed using the Korean Occupational Stress Scale (KOSS) and Korean version of the Center for Epidemiologic Studies-Depression Scale (CES-D). The results of this study showed that the occupational stress level of horse stable hand workers was higher than the median of Korean population. The significant difference in occupational stress among the detail job grade was also identified. In addition, 34% of the horse stable hand workers showed high risk of depression, and job demand, organizational system, and inappropriate compensation as the subfactors of occupational stress were showed to mainly affect depression. Although there are some limitations according to the field survey, this study also has significant meaning in that it identifies the relationship between the occupational characteristics of the horse stable hand workers and the mental health. It will be necessary to study the diverse organizational situation and individual mental health for new occupations.

• Journal of the Korean Society of Safety
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• v.27 no.4
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• pp.83-89
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• 2012

In order for start-up establishment to enter the business market, it has to get over the first mover advantage of the existing establishment. As a result, its working condition deteriorates and a great deal of occupational accidents take place. Based on 2009 standard, the occupational accident rate of start-up establishment is 1.28%, which is two times higher than existing establishment and the gap between manufacturing and service industry has been getting wide. For the characteristic of injured person in start-up establishment, it is showed that the occupancy rate of women and people with less than 30 age starting out in a career is high and the occupancy rate of occupational accident for holiday and night work is high. Therefore, the act for occupational accident prevention is needed in the early period of business and underprivileged group for occupational accident.

• Safety and Health at Work
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• v.1 no.1
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• pp.69-79
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• 2010

Objectives: Various cytokines induced by inhalation of coal dust may mediate inflammation and lead to tissue damage or fibrosis, such as coal workers' pneumoconiosis (CWP). Methods: To investigate the relevance of serum cytokines in CWP, the levels of serum interleukin-8 (IL-8) and tumor necrosis factor-alpha (TNF-${\alpha}$) as CWP biomarkers in 110 retired coal miners (22 controls and 88 CWP subjects) were related to cross sectional findings and 1-year progressive changes of the pneumoconiosis. Progressive changes of CWP were evaluated by paired comparison of chest radiographs. Analysis by a receiver operating characteristic curve assessed the biomarker potential of each cytokine. Results: The mean serum IL-8 level was significantly higher in CWP compared to controls and IL-8 levels correlated with the degree of CWP. The median serum TNF-${\alpha}$ level was significantly higher in subjects with progressive CWP compared to subjects without CWP progression. The area under the ROC curve for IL-8 (0.70) and TNF-${\alpha}$ (0.72) for CWP identification and progression, respectively, indicated the biomarker potential of the two cytokines. Serum cutoff values of IL-8 and TNF-${\alpha}$ were 11.63 pg/mL(sensitivity, 69%; specificity, 64%) and 4.52 pg/mL (sensitivity, 67%; specificity, 79%), respectively. Conclusion: The results suggest that high levels of serum IL-8 are associated with the presence of CWP and those of serum TNF-${\alpha}$ are associated with the progression of CWP.

• Asian Pacific Journal of Cancer Prevention
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• v.16 no.16
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• pp.7195-7200
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• 2015

Background: Since seventeen employees of an offset printing company in Osaka, Japan developed cholangiocarcinoma it has become recognized as an occupational cancer. This study investigated the differences of clinical features between occupational cholangiocarcinoma and sporadic young-onset cholangiocarcinoma. Materials and Methods: Thirty-four young adults (<50 years old) with sporadic cholangiocarcinoma were extracted from the Rosai Hospital Group database (sporadic group) and their clinical features were compared with those of 17 patients with occupational cholangiocarcinoma (occupational group). Results: The 34 patients in the sporadic group were treated for cholangiocarcinoma at 16 different Rosai hospitals. There were significant differences of age (p<0.01), gender (p<0.01), abnormal laboratory tests (p<0.01), and tumor location (p<0.01) between the two groups. The percentage of patients with abnormal laboratory tests was significantly higher in the occupational group than in the sporadic group (p<0.001). Regional dilation of bile ducts, which is a characteristic of occupational cholangiocarcinoma, was not observed in the sporadic group. Conclusions: No cluster of cholangiocarcinoma cases was identified in the Rosai Hospital database. There were differences of clinical features between occupational and sporadic cholangiocarcinoma, which might be helpful for diagnosing occupational cholangiocarcinoma in the future.

• Korean Journal of Occupational Therapy
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• v.26 no.4
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• pp.1-11
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• 2018

Objective : This study was conducted to determine the emotional labor of occupational therapists and the level of their feelings of depression and to examine the impact of their emotional labor on their depressive mood. Methods : Subjects of this study were clinical occupational therapists working at hospitals and clinics in Seoul and Gyeonggi regions. The factors of emotional labor were set as independent variables, the general characteristic variable and job characteristic variable which showed significant results in the chi-square test was set as the adjusted variable and whether the depression happens or not was set as the dependent variable, after which a multivariate logistic regression analysis was conducted. Results : Components of emotional labor, including frequency of emotional display(OR 1.699, 95% CI 1.202-2.401), attentiveness to required display rules(OR 1.436, 95% CI 1.070-1.982), and emotional dissonance(OR 1.866, 95% CI 1.336-2.607) all had a significant effect on depression. The possibility of depression was significantly higher in women than men(OR 5.736, 95% CI 1.746-18.846), those working for more than 8 hours per day than less than 8 hours per day(OR 8.609, 95% CI 2.306-32.137), and those working with children than those working with adults(OR 4.249, 95% CI 1.668-10.824). Conclusion : This study revealed that the emotional labor that occupational therapists are exposed to while interacting with patients and their caregivers exerts an influence on their feelings of depression. This suggests the need for developing various preventive intervention programs designed to alleviate the depressive symptoms of occupational therapists and formulating appropriate policies.

• Journal of the Ergonomics Society of Korea
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• v.34 no.4
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• pp.353-362
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• 2015

Objective: This study aims to analyze occupational accidents of moving helpers by work place type which means the type of residence where moving operation is done. Background: Most efforts have been focused on the industry base comprising various occupational spectrum and provided industry general preventative policies. But occupation specific policies are required for the workers involved and will reduce the occurrences of occupational accidents for the workers subject to similar working environment and process. Method: This study analyzes 208 non-motor vehicle collision related occupational accidents of moving helpers working for used household and office goods moving industry occurring from 2010 to 2012. Accident Type, agencies, event or exposure, parts of body affected are characterized by work places according to the work environment. Results: Accidents characteristics showed the difference between high-rise type and low-rise type on the size of enterprise, age, gender and work experience of the injured. Also the accident type, source of accident and parts of body affected are different between the two work place types. Finally, Accidents occurred on the specific operational processes of moving service also showed different characteristic between the two types. Conclusion and Application: The findings of accident characteristics according to workplace types and operational process of moving service can be used as baseline data for establishing systemized preventative policies for occupational accidents of moving helpers.

• Journal of Korean Society of Occupational and Environmental Hygiene
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• v.30 no.2
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• pp.153-162
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• 2020

Objectives: 3D printing technologies have become widely developed and are increasingly being used for a variety of purposes. Recently, the evaluation of 3D printing operations has been conducted through chamber test studies, and actual workplace studies have yet to be completed. Therefore, the objective of this study was to determine the emission of volatile organic compounds(VOCs), metals, and particles from printing operations at a workplace. This included monitoring conducted at a commercial 3D printing service workplace where the processes involved material extrusion, material jetting, binder jetting, vat photo polymerization, and powder bed fusion. Methods: Area samples were collected with using a Tenax TA tube for VOC emission and MCE filter for metals in the workplace. For particle monitoring, Mini Particle Samplers(MPS) were also placed in the printer, indoor work area, and outdoor area. The objective was to analyze and identify particles' size, morphology, and chemical composition using transmission electron microscopy with energy dispersive spectroscopy(TEM-EDS) in the workplace. Results: The monitoring revealed that the concentration of VOCs and metals generated during the 3D printing process was low. However, it also revealed that within the 3D printing area, the highest concentration of total volatile organic compounds(TVOC) was 4,164 ppb at the vat photopolymerization 3D printing workplace, and the lowest was 148 ppb at the material extrusion 3D printing workplace. For the metals monitoring, chromium, which, is carcinogenic for humans, was detected in the workplace. As a characteristic of the particles, nano-sized particles were also found during the monitoring, but most of them were agglomerated with large and small particles. Conclusions: Based on the monitoring conducted at the commercial 3D printing operation, the results revealed that the concentration of VOCs and metals in the workplace were within Korea's occupational exposure limits. However, due to the emission of nano-sized particles during 3D printing operations, it was recommended that the exposure to VOCs and metals in the workplace should be minimized out of concern for workers' health. It was also shown that the characteristics of particles emitted from 3D printing operations may spread widely within an indoor workplace.