Effects of changes in occupational stress on the depressive symptoms of Korean workers in a large company: a longitudinal survey

BACKGROUND: Prospective studies on occupational stress and depression among Korean workers are scarce. This study aimed to investigate the causal relationship between changes in occupational stress and the presence of depression. METHODS: This study analyzed data from a survey conducted with workers in a large Korean company (2015–2016). Occupational stress was measured using the Korean Occupational Stress Scale, and depression was screened using the WHO-5 Well-being Index. The levels of occupational stress were grouped in quartiles based on subjects’ occupational stress scores in 2015, and changes in occupational stress were measured using the score changes between the 2015 and 2016 surveys. Subjects were divided into four groups according to the presence or absence of depression in 2015 and 2016: a non-depressed group whose mental health did not change, a non-depressed group whose mental health deteriorated, a depressed group that continued to be depressed, and a depressed group whose symptoms of depression were alleviated. Logistic regression analysis was used to calculate the odds ratios (ORs) and confidence intervals (CIs) of the subjects’ deterioration in mood or alleviation of depression by occupational stress levels and changes. RESULTS: The OR for developing depressive symptoms was 2.51 (95% CI 1.46–4.33) and 2.73 (95% CI 1.39–5.36) in the third and the fourth quartiles of occupational stress, respectively, compared to the first quartile. When the occupational stress score increased by 1 point, the OR for increasing depressive symptoms was 1.07 (95% CI 1.04–1.10). There was no significant difference in the alleviation of depressive symptoms between the groups by level of occupational stress. However, when the occupational stress score decreased by 1 point, the OR for alleviating depressive symptoms was 1.08 (95% CI 1.05–1.11). CONCLUSION: The results showed that increased occupational stress increased the presence of depressive symptoms, and that reduced occupational stress suppressed the development of depressive symptoms. More attention should be paid to stress management among workers.

Correlation between Fatigue and Quality of Life Caused by Stress of Researchers' Work / 한국직업건강간호학회지

PURPOSE: The purpose of this research was to provide baseline data by utilizing solutions to health problems caused by work-related stress and to examine a way of treatment by comparing and analyzing how the stresses link to fatigue and quality of researchers' life. METHODS: A survey was conducted with 50 researchers working for in H research institute in Daejeon Metropolitan City from April 10th to May 10th, 2012 to examine the correlation of work stress, fatigue and quality of life. The data were analyzed using the Kruskal-Wallis test to look into examine the difference in work stress, fatigue, and quality of life. Also, the correlation of work stress, fatigue and quality of life was measured through by the Pearson correlation coefficient. The data collected through the questionnaires was were analyzed by SPSS 21.0 based on the significant level with a p-value, 0.05. RESULTS: The results showed that fatigue was caused by work stresses in researchers and quality of life was ranked in a relatively low level. Correlation of work stresses, quality of life and fatigue and work stresses against mental health index was negative and fatigue against physical index was also negative. CONCLUSION: It is necessary to maintain more detailed provisions in order to improve mental health and stress level of researchers. Moreover, systematic, in-depth evaluation should be done to reduce researcher's work-related stress and fatigue. In addition, stress management and prevention program should be implemented for these researchers.

Analysis of the occupational stress of Korean surgeons: a pilot study / 대한외과학회지

PURPOSE: Surgeons serve one of the most challenging and stressful professions. Ineffective control of occupational stress leads to burnout of the surgeon. The aim of this study was to obtain preliminary data on the sources and the degree of stress of surgeons and to determine the feasibility of the survey. METHODS: A total of 63 surgeons in our three affiliated hospitals were enrolled in this study. Fifty-five questions were used to assess the demographics, characteristics and Korean occupational stress scale (KOSS), which were prepared and validated by the National Study for Development and Standardization of Occupational Stress. RESULTS: Forty-seven of the 63 surgeons participated in this study (74.6%). The mean KOSS score of the survey was 50.9 +/- 8.55, which was significantly higher than that of other professions (P < 0.01). Drinking and smoking habits were not related to the KOSS score. Doing exercise was related to a low KOSS score in terms of low KOSS total score (P < 0.01). Average duty hours (P < 0.01) and night duty days per week (P = 0.01) were strongly related to higher KOSS in the linear regression analysis. CONCLUSION: This is the first study to evaluate job stress of surgeons in Korea. This study showed that Korean Surgeons had higher occupational stress than other Korean professions. A larger study based on this pilot study will help generate objective data for occupational stress of Korean Surgeons by performing a survey of the members of the Korean Surgical Society.

The Relationship between Occupational Stress and Burnout among Occupational Therapists / 대한산업의학회지

OBJECTIVE: A growing body of research has documented that occupational stress is associated with workers' adverse health outcomes such as mental distress, depression and burnout. This study was performed to identify the relationship between occupational stress and burnout among occupational therapists in Korea. METHODS: A total of 226 occupational therapists registered in the Korean Association of Occupational Therapist participated in the study. A self-administered questionnaire was used to assess demographics, subjective health status, work-related factors, occupational stress and burnout. Burnout was measured by Maslach Burnout Inventory (MBI). Occupational stressors were assessed using 26-items of the Korean Occupational Stress Scale (KOSS-26(R)). This scale consists of items targeting at physical environment, job demand, insufficient job control, interpersonal conflict, job insecurity, lack of reward, organizational system and occupational climate. Simple and multiple regression analyses were performed to investigate the relationship between 8 occupational stressors and burnout, separately. SAS 9.1 version was used for the analyses, and a P<0.05 was considered significant. RESULTS: The results show that all occupational stressors were associated with burnout after adjustment for control variables. Occupational stressors accounted for from 14.39% (p<0.001, organizational system) to 33.21% (p<0.001, occupational climate) of the variance in burnout. CONCLUSION: These results suggest that occupational stress might play a significant role in increasing the risk of burnout among occupational therapists.

Job Characteristics and Occupational Stress on Health Behavior in Korean Workers / 가정의학회지

BACKGROUND: The purpose of this study is to evaluate the influence of job characteristics and occupational stress on health-related behavior. METHODS: Eight thousand five hundred twenty two workers (21-65 years of age) who recruited from a nationwide sample in Korea completed a self-administered questionnaire regarding socio-demographic factors, job characteristics, health-related behaviors such as alcohol consumption, current smoking status & exercise, and occupational stress assessed by Korean Occupational Stress Scale. Multivariate analyses were conducted to analyze the association of occupational stress and job characteristics with health behavior according to gender separately. RESULTS: In male, the problem drinking was positively associated with older age, lower educational level, some industries such as 'transport,' 'wholesale and retail trade' industries, difficult physical environment, insufficient job control, inadequate social support, job insecurity, and organizational injustice. Current smoking was positively associated with younger age, lower educational level, single marital status, lower incomes, 'transport' industry and high job demand. The rate of regular exercise was negatively associated with lower incomes, shift works, and the 'electricity, gas and water supply' industies, high job demand, insufficient job control, inadequate social support, job insecurity, and lack of reward. 'Financial institutions and insurance' industry. CONCLUSION: Occupational stress and certain industrial classification have impact on health related lifestyles in Korean male employees.

Occupational Stress on Risk Factors for Cardiovascular Diseases and Metabolic Syndrome / 대한산업의학회지

OBJECTIVES: The aim of the study was to examine the relationship between occupational stress and cardiovascular risk factors including metabolic syndrome in a working population. METHODS: A cross-sectional population-based survey was conducted among Koreans working in several industries. They were questioned about: demographic factors, marital status, education, personal history, alcohol intake, smoking, and physical activity , while their occupational stress was assessed using the Korean Occupational Stress Scale (KOSS). The subjects were measured for height, weight, blood pressure, waist circumference, fasting plasma glucose, cholesterol, triglycerides, HDL-cholesterol and LDLcholesterol. Regression analyses to determine the relationships between occupational stressors using KOSS and cardiovascular risk factors were performed using multivariate models with adjustment for potential confounders. RESULTS: A total of 2,097 workers (1,770 men and 327 women) were included. Multiple logistic regression analysis (socio-demographics and potential confounders) demonstrated a positive association between high interpersonal conflicts and hypertension, a negative association between high job insecurity and diabetes and no association between any KOSS subscale and metabolic syndrome and obesity. Multiple linear regression, adjusted for socio-demographics and potential confounders demonstrated a negative association between low HDL-cholesterol and poor physical environments, high job demand and poor job insecurity and no association between lipid profiles and other KOSS sub-scales. CONCLUSIONS: A few KOSS sub-scales such as interpersonal conflicts showed a positive association with hypertension in Korean workers. Neverthelsss, some measures of occupational stress showed a negative association with diabetes and HDL-cholesterol in cross-sectional population-based survey. We therefore decided to conclude this association by longitudinal study.