The Association Between Employment Status and Mental Health in Young Adults: A Nationwide Population-Based Study in Korea.

BACKGROUND: There has been limited evidence on the association between employment status and mental health among young adults. Therefore, this study investigated the association between employment status and mental health in Korean young adults. METHODS: Data from 15,649 adults aged 19-39 years who participated in the Korea National Health and Nutrition Examination Survey (2007-2013, 2015, and 2017) were analyzed. Employment status was categorized by those who worked in paid jobs or those who did unpaid work for relatives. Mental health problems included depressive mood and suicide ideation. We performed a multiple logistic regression analysis. RESULTS: Of the participants, 33.5% were unemployed. The odds ratio (OR) of depressive mood (1.28, 95% CI: 1.06-1.55) was higher in unemployed 20-year-olds than employed ones and ORs of suicide ideation were higher among unemployed males (1.59, 1.16-2.20) and 30-year-olds (1.38, 1.13-1.70) than employed ones, respectively. Further, compared to employed males, the ORs of depressive mood (3.10, 2.54-3.77) and suicide ideation (4.44, 3.57-5.53) were the highest among unemployed females. LIMITATIONS: This study could not explain the causal relationship between employment status and mental health because it was a cross-sectional study. We did not include the relationship between mental health and employment status before the last week. CONCLUSIONS: Among young adults, unemployed status was significantly associated with an increased risk of mental health problems such as depressive mood and suicide ideation. Multifaceted efforts are required to reduce these mental health issues among unemployed young adults.

Association between Exposure to Alcohol's Harm to Others and Health-Related Quality of Life in Korean Adults: A Nationwide Population-Based Study.

This study aimed to investigate the association between exposure to alcohol's harm to others (AHTO) and health-related quality of life HRQoL using a nationally representative sample. Data from 2016-2018 of 17,346 South Korean individuals aged ≥19 years were obtained from the Korea National Health and Nutrition Examination Survey. HRQoL was evaluated using the European Quality of Life-5 Dimensions (EQ-5D) index. A significant positive association was found between exposure to AHTO and lower EQ-5D scores (p = 0.022). In the final model of multiple regression analysis, participants' HRQoL decreased by 0.932 points when exposed to AHTO (R2 = 36.5%, p < 0.001). In addition, the exposure to AHTO group had significantly higher odds ratios (OR) for pain/discomfort (OR: 1.42, 95% CI: 1.15-1.75) and anxiety/depression (OR: 1.55, 95% CI: 1.68-2.80) compared to the non-AHTO group. Further studies are required for intervention when exposed to reduce the pain/discomfort and anxiety/depression in AHTO victims as well as to reduce the incidence of AHTO.

The interplay of sleep duration, working hours, and obesity in Korean male workers: The 2010-2015 Korea National Health and Nutrition Examination Survey.

The purpose of this study was to clarify the odds ratio for association between working hours and obesity in Korean male wage workers and investigate the role of sleep duration. This study is a cross-sectional one using large-scale national data from the Korea National Health and Nutrition Examination Survey collected between 2010 and 2015 to evaluate 2,592 male wage workers (between the ages of 19 and 60 years). Obesity was defined as 25kg/m2 or more and working hours per week were categorized into <40, 40-49, 50-59, and ≥60 hours. Multiple regression analysis was performed to examine the odds ratio for association between working hours and obesity, after controlling for age, education, income, marital status, smoking, drinking, physical activity, daily energy intake, sleep duration, hypertension, diabetes, dyslipidemia, work schedule, and job category. Next, to study the mediating effect of sleep duration on the association between working hours and obesity, an analysis was performed using the Baron and Kenny method and the Sobel test. Results showed that workers with 50 to 59 hours had 1.4 times higher odds (odds ratio [OR] = 1.4, confidence interval [CI]: 1.11-1.85) of obesity and workers with 60 hours or more had 1.4 times higher odds (OR = 1.4, CI: 1.06-1.90) of obesity than workers with less than 40 hours. Sleep was found to have a mediating effect on the association between working time and body mass index. Therefore, the results of this analysis suggest that practitioners should identify potential factors such as working time and sleeping time when preventing work-related obesity.

Association between Occupational Characteristics and Overweight and Obesity among Working Korean Women: The 2010-2015 Korea National Health and Nutrition Examination Survey.

Associations between several occupational characteristics and obesity are not fully elucidated in Korean working populations, especially in females. This study investigated associations between occupational characteristics and overweight/obesity among Korean women. Data on 2090 female workers (the mean age was 38.8 ± 0.2 years), extracted from Korean National Health and Nutrition Examination Surveys in 2010-2015, were analyzed and showed that 6.8% of subjects were underweight, 50.8% had normal weight, 20.1% were overweight, and 22.2% were individuals with obesity. Multiple regression analysis was performed to examine associations between occupational characteristics and overweight/obesity, after controlling for demographic, behavioral, and health-related characteristics. The reference group was normal weight. Working hours were strongly associated with overweight/obesity. The odds ratio (OR) of obesity in women who worked for ≥60 hours per week was 2.68 (95% confidence interval: [CI] 2.13-3.36) compared with those who worked for <40 hours. Night/shift workers were 1.21 times (95% confidence interval: [CI] 1.01-1.45) more likely to experience obesity than day or evening workers. In conclusion, obesity rates increase among female workers with longer working hours and those who work at night or in shifts. Occupational characteristics should be considered in the prevention of obesity among working women.