• 한국산업보건학회지
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• 제27권2호
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• pp.138-148
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• 2017

Objectives: Sleep quality is directly related to the health, quality of life and working capacity and is affected by age, gender, exercise, life habits. Gender dissimilarities in sleep quality are acknowledged. However, the gender difference in the quality of sleep in shift workers was not well known. Our aim was to study the less known gender differences in the quality of sleep of shift workers. Methods: 1,008 study subjects aged between 21 and 57 years among these, 637(525 male and 112 female workers) were daytime workers and 371(253 males and 118 female workers) were shift workers. Sleep quality was measured by self-report through the Pittsburg Sleep Quality Index(PSQI) and fatigue was measured by using the Chalder Fatigue Scale(CFS). All data was analyzed using SPSS version 19.0 program. The study was approved by the Institutional Review Board of the Occupational Safety and Health Research Institute. Results: Overall, sleep quality was found to be worse in shift workers than in daytime workers and in female than in male. Fatigue in shift female workers was significantly higher than in daytime female workers and shift male workers. In Spearman correlation analysis results, fatigue were significantly associated with gender, drink habit, regular exercise, working hours and sleep quality. With group male workers as the reference, the odds ratio(OR) for having a CFS was 2.115(${\beta}$ value=0.749, p<0.01), and subjective sleep quality, sleep latency, daytime dysfunction and PSQI were 1.541(${\beta}$ value=0.432, p<0.05), 2.297(${\beta}$ value=0.831, p<0.001), 1.798(${\beta}$ value=0.587, p<0.01) and 2.224(${\beta}$ value=0.799, p<0.01), respectively. Conclusions: Shift work played an important role in lowering the quality of sleep, and the effect was more pronounced in female workers than in male workers. Sleep quality was related to fatigue, especially sleep quality, sleep duration, sleep disturbances and daytime dysfunction were significantly related. Therefore, to improve fatigue and sleep quality of shift worker, it is necessary to improve healthy habits such as regular exercise, smoking cessation, and limited drinking. In particular, it is urgent to develop and implement a regular exercise program to reduce fatigue and improve the quality of sleep in workplace.

• 한국산학기술학회논문지
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• 제19권11호
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• pp.105-115
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• 2018

본 연구는 일부 제조업 남성 근로자들의 음주패턴과 수면의 질과의 관련성을 평가할 목적으로 시도하였다. 조사는 2017년 5월에 D 광역시의 제조업 사업장에 근무하고 있는 남성 근로자 553명을 대상으로 구조화된 무기명 자기기입식 설문지에 의한 단면조사를 실시하였다. 자료의 분석은 독립변수로 음주패턴(음주빈도와 1일 음주량을 합산하여 산정한 알코올 섭취량 및 1주간의 알코올 섭취량)을 사용하고, 종속변수로 한국어판 피츠버그수면조사표(PSQI)에 의한 수면의 질을 사용하여 로지스틱회귀분석을 실시하였다. 연구결과, 전체 조사대상자의 56.2%는 수면의 질이 좋지 않은 것으로 평가되었다. 로지스틱회귀분석 결과, 조사대상 남성 근로자들의 수면의 질이 낮을 교차비는 비음주군에 비해 주당 1회 이상 음주군에서 0.44배(95% CI=0.232-0.845) 유의하게 감소하였다. 또한 수면의 질이 낮을 교차비는 비음주군에 비해 매일 19.9g(1잔)이하의 음주군에서 0.31배(95% CI=0.192-0.829), 매일 20.0-60.0g(1-3잔)의 음주군에서 0.28배(95% CI=0.167-0.762) 유의하게 감소하였다. 이 같은 결과는 일부 남성 근로자에서의 수면의 질은 개개인의 음주패턴이 관련하고 있음을 시사한다.

• Journal of Preventive Medicine and Public Health
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• 제32권2호
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• pp.206-214
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• 1999

Objectives: This study was carried out to identify relation of health care utilization due to skin disease(ICD-10, L00-L99) and characteristics(sex, age, exposure status, type of industry, size of enterprise) of workers. Methods: We made new database composed of 30,536 workers' health examination results in one specific health examination institute in Inchon and data of medical insurance utilization due to skin disease in 4 medical insurance associations for enterprise from January, 1995 to December, 1997 And we analyzed determinants of health care utilization due to skin disease of workers. Results: Among 30,536 study subjects, 8,837(28.9%) workers and 4,181 (13.7%) workers utilized medical insurance due to total skin disease(ICD-10, L00-L99) and contact dermatitis(ICD-10, L23-L25), respectively. Female workers(p<.001), workers exposed to organic solvents(p<.05), workers if manufacturing industries(p<.05, p<.01, respectively) and in large scale enterprises(p<.001) utilized more medical insurance due to total skin disease and contact dermatitis than male workers, workers not exposed to organic solvents, workers in non-manufacturing industries and small scale enterprises. With multiple logistic regression analysis, significant explanatory variables affecting workers' medical utilization due to total skin disease and dermatitis and eczema(ICD-10, L20-L30) in total workers were sex, age, specific chemicals and size of enterprises. And age, type of industries, organic solvents, specific chemicals and size of enterprises were significant explanatory variables related to medical insurance utilization due to dermatitis and eczema and contact dermatitis in male workers. Conclusion: From the above results, we found that workers exposed to organic solvents utilized more medical insurance due to skin disease than workers not exposed to. And, comparing to workers in large scale enterprises, workers in small scale enterprises may have unmet medical care utilization due to skin disease. Therefore we have to establish counterplan to manage occupational skin disease of high risk group(organic solvent exposure group) and to satisfy unmet medical care utilization of workers in small scale enterprises.

• 산업진흥연구
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• 제1권2호
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• pp.63-69
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• 2016

본 연구는 충남지역 중소 제조기업 남성 근로자의 교육훈련 참여가 교육효과 인식에 미치는 영향을 분석하였다. 연구결과 교육훈련 형태 중 Off-JT에 대한 만족도는 교육훈련 시스템 만족도와 직무와 관련한 자기계발 도움 정도에 긍정적인 영향을 미쳤다(p<.05). 이는 집체교육이나 이러닝교육이 현장훈련보다 교육시스템이 더 잘 갖춰져 있음을 의미하며, 따라서 향후 현장훈련에 대한 체계적인 시스템 마련이 필요하다고 제안할 수 있다. 또한 근로자가 집체교육이나 이러닝교육이 현장훈련보다 자기계발에 더 효과적이라고 인식하고 있으며, 현장훈련에 대한 만족도가 낮게 나타나 개선이 필요함을 의미한다. 본 연구는 충남지역 중소 제조기업 남성 근로자의 교육훈련 참여가 교육효과 인식에 미치는 영향을 분석함으로써 교육형태별 효과성을 파악하고 사내 교육훈련 만족도를 높이기 위한 시사점을 제시한 데 연구의 의의가 있다.

• 대한간호학회지
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• 제49권6호
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• pp.748-759
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• 2019

Purpose: This study aimed to examine the effect of spouses participating in health coaching on stage of the change, health behaviors, and physiological indicators among male office workers with cardiocerebrovascular disease (CVD) risk factors and compare the findings with trainers who provided health coaching only to workers. Methods: A quasi-experimental pretest-posttest design was used. Convenience sampling was used to recruit participants from a manufacturing research and development company in the city of Gyeonggi province. The health coaching program for the experimental group (n=26) included individual counseling sessions according to workers' stage of change, and provision of customized health information materials on CVD prevention to workers and their spouses for 12 weeks through mobile phone and email. Results: After 12 weeks of intervention, the total score for health behavior, and scores on the sub-areas of exercise and health checkups significantly improved in the experimental group, but there were no significant differences in the scores of stage of the change and physical indicators. The results of a paired t-test showed a significant decrease in the body mass index, abdominal circumference, systolic blood pressure, diastolic blood pressure, total cholesterol and triglyceride values, and a significant increase in the high-density lipoprotein cholesterol value in the experimental group after the intervention. Conclusion: To improve the health of male workers with CVD risk factors in the workplace, sharing health information with their spouses has proven to be more effective than health coaching for only workers. Therefore, it is important to develop strategies to encourage spousal participation when planning workplace health education for changing health-related behaviors.

• 한국환경보건학회지
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• 제9권2호
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• pp.19-30
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• 1983

This report is intended to find out the health status of the korean industrial workers based on the periodic physical examination in 1982. It has resulted in the followings: 1. As of April, 1982, total No. of industries was 81,136 of which workers was totally 3,383,700 persons classifying into 2,163,600 in male and 1,220,100 in female, and manufacturing field was occupied 44.6% of total industries and 61.0% of total workers. 2. In view of size, industries having less than 9 ordinary workers was 47.5%, those having less than 29 ordinary workers was 77.0%. 3. Applicable target industries to industrial safety & health law was 31,059 which was covered 38.3% of total establishments and No. of workers was 2,192,511, 64.8% of all industrial workers. 4. No. of establishment & workers conducting the physical examination was 26,463 which is 85.2% of all examining industries and was 2,007,091, 91.5% of all examining required workers. 5. Case having general disease by general physical examination was 3.5% of examining workers and especially it was appeared 9.7% in mining. 6. Case having general disease by special physical examination was 3.8% of examining workers and incidence rate for occupational disease was 2.4% of examining workers. 7. No. of the occupational diseased was 5,341 persons which is 2.6% of all the examining workers, 205,497 and its rate was appeared highly as 7.5% of silicosis in mining workers and 1.4% of hearing difficulty to noise in construction.

• 한국산업보건학회지
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• 제29권2호
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• pp.259-269
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• 2019

Objective: This study was conducted to prepare fundamental data and assess the relationship between level of exposure to airborne respirable dust, chest radiation findings, and the results of pulmonary function tests among workers in a cloth manufacturing factory. Methods: The number of total subjects was 144 (124 female and 20 male) workers in a cloth manufacturing factory in the city of Busan. This study measured the concentration of airborne respirable dust by gravimetric analysis and performed pulmonary function testing, and got chest radiation findings from December 1, 2016 to March 31, 2017. Collected data was analyzed using the IBM SPSS statistical package program (ver. 24.0). Results: The mean concentration of respirable dust was the highest in the cutting process. The effecting factors on $FEV_1/FVC$ were age, sex, and working process. The effecting factors on chest radiation findings were doing no exercise and concentration of respirable dust. Conclusions: Based on the above results, the authors consider there to be a need to secure sufficient working space and improve the engineering systems, for example the overall or local ventilation, in order to minimize the exposure to respirable dust. Health education and health promotion activities should also be improved in order to maintain optimal health status. The authors expect further studies to be performed on pulmonary function testing, chest radiation findings, and symptoms related to pulmonary function, including continuous observation, among workers in a cloth manufacturing factory.

• 한국산학기술학회논문지
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• 제17권7호
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• pp.543-554
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• 2016

본 연구의 목적은 제조업 남성 근로자들의 직무스트레스 요인과 피로수준과의 관련성을 조사하기 위함이다. 연구대상자는 50인 미만의 소규모 제조업 사업장에서 근무하고 있는 남성 근로자를 553명으로 하였다. 자료 수집은 2015년 4월에 한국인 직무스트레스 측정도구와 한국판 다차원피로척도를 사용한 구조화된 설문지를 이용하여 실시하였으며, 수집된 자료는 SPSS ver 21.0 프로그램을 이용하여 분석하였다. 연구결과, 조사대상자의 피로증상은 직무스트레스가 정상인 군보다 고위험 스트레스군에서 유의하게 높았다. 또한 조사대상자의 피로증상은 직무스트레스와 유의한 양의 상관관계를 보였으며, 직무스트레스가 정상인 군에 비해 고위험 스트레스 군에서 고위험 피로군에 속할 위험비가 유의하게 증가하였다. 또한 피로수준에 영향을 미치는 요인으로는 연령, 결혼상태, 교육수준 및 주관적 건강상태. 수면시간, 커피음용 횟수, 외래진료경험 유무, 직장생활 만족도 및 직무스트레스가 유의한 변수로 선정되었으며 이들의 설명력은 27.7%이었다. 위와 같은 연구결과는 소규모 제조업 남성 근로자들의 피로수준은 인구사회학적 특성, 건강관련행위 특성 및 직업관련 특성뿐만 아니라 직무스트레스 요인과도 유의한 관련성이 있음을 시사하고 있다.

• Safety and Health at Work
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• 제9권2호
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• pp.184-191
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• 2018

Background: Due to an increasing number of workers aged 50 years and above, the number of those employed is also on the rise, and those workers aged 50 and over has exceeded 50% of the total fatal occupational injuries. Therefore, it is necessary to implement the selection and concentration by identifying the characteristics of high-risk groups necessary for an effective prevention against and reduction of fatal occupational injuries. Methods: This study analyzed the characteristics of high-risk groups and the occupational injury fatality rate per 10,000 workers among the workers aged 50 and over through a multi-dimensional analysis by sex, employment status of workers, industry and occupation by targeting 4,079 persons who died in fatal occupational injuries from January 2007 to December 12. Results: The share of the workers aged 50 years and above is increasing every year in the total fatal occupational injuries occurrence, and the high-risk groups include 'male workers' by sex, 'daily workers' by worker's status, 'craft and related-trades workers' by occupation, and 'mining' by industry. Conclusion: The most frequent causal objects of fatal occupational injuries of the workers aged 50 years and above are found out to be 'installment and dismantlement of temporary equipment and material on work platforms including scaffold' in the construction industry and 'mobile crane, conveyor belt and fork lifts' in the manufacturing industry.

• Safety and Health at Work
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• 제14권1호
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• pp.59-65
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• 2023

Objectives: Epidemiological evidence linking long working hours and shift work to metabolic syndrome remains inadequate. We sought to evaluate the impact of reducing working hours on metabolic syndrome. Methods: We compared the prevalence of metabolic syndrome among male manual workers in a manufacturing company (N = 371) before and after the introduction of policy to reduce daily work hours from 10 to 8 hours. Components of metabolic syndrome were measured in periodic health examinations before the intervention, 6-9 months after, and 1.5-2 years after the intervention. Generalized estimating equation models were used to estimate changes in the prevalence of metabolic syndrome. Analyses were stratified by day work versus shift work. Results: The results showed a significantly decreased prevalence of metabolic syndrome 6-9 months following the intervention in day workers (risk ratio = 0.68, 95% confidence interval 0.52-0.88), but the benefit disappeared after 1.5-2 years. Shift workers showed a decreased prevalence of metabolic syndrome for the whole follow-up duration after the intervention, although the change was not statistically significant. Conclusion: Reducing working hours was associated with short-term improvement in metabolic syndrome in male manual workers.