1.Association of weight and dietary habits with high blood mercury levels in Korean adolescents: data from the KoNEHS cycle 4, 2018-2020
Ji Hoon KIM ; Minju JUNG ; Jaewon MUN ; Dong-Jae SEO ; Jong-Han LEEM ; Shin-Goo PARK ; Dong-Wook LEE ; Hyung Doo KIM ; Hwan-Cheol KIM
Annals of Occupational and Environmental Medicine 2025;37(1):e5-
Background:
Humans are exposed to mercury primarily in its highly toxic form, methyl mercury, which is known to have adverse effects on various organs and systems. The negative impact of mercury exposure on the growth, development, and mental health of children, from infancy to adolescence, is well-documented. However, there are no internationally standardized safe limits for mercury exposure. This study investigated the impact of dietary habits and higher body mass index (BMI) on blood mercury levels in adolescents.
Methods:
This study analyzed the data from the 4th Korean National Environmental Health Survey (KoNEHS) 2018–2020. The focus was on 825 middle and high school students aged 13–18 years, whose blood mercury levels were measured. A survey on dietary and lifestyle habits was also conducted. Blood mercury levels were categorized by geometric median values, and associations with overweight status and seafood consumption were examined using a generalized linear model.
Results:
The geometric mean blood mercury level for the entire sample was 1.37 μg/L, with levels of 1.31 μg/L in normal-weight individuals and 1.43 μg/L in overweight individuals, showing a statistically significant difference between the two groups. After adjusting for other variables, blood mercury levels were significantly associated with overweight status (estimate: 0.084; p = 0.018; 95% confidence interval [CI]: 0.015–0.153), consumption of large fish and tuna more than once a week (estimate: 0.18; p = 0.001; 95% CI: 0.077–0.284), and consumption of fish once a week or more (estimate: 0.147; p = 0.004; 95% CI: 0.043–0.250).
Conclusions
In adolescents, a higher BMI and an increased consumption of large fish, tuna, and fish were associated with higher blood mercury levels. Notably, a stronger association was found between large fish consumption and blood mercury levels in the overweight group. These findings suggest the need to moderate seafood consumption and establish more proactive mercury exposure standards for adolescents.
2.Association of weight and dietary habits with high blood mercury levels in Korean adolescents: data from the KoNEHS cycle 4, 2018-2020
Ji Hoon KIM ; Minju JUNG ; Jaewon MUN ; Dong-Jae SEO ; Jong-Han LEEM ; Shin-Goo PARK ; Dong-Wook LEE ; Hyung Doo KIM ; Hwan-Cheol KIM
Annals of Occupational and Environmental Medicine 2025;37(1):e5-
Background:
Humans are exposed to mercury primarily in its highly toxic form, methyl mercury, which is known to have adverse effects on various organs and systems. The negative impact of mercury exposure on the growth, development, and mental health of children, from infancy to adolescence, is well-documented. However, there are no internationally standardized safe limits for mercury exposure. This study investigated the impact of dietary habits and higher body mass index (BMI) on blood mercury levels in adolescents.
Methods:
This study analyzed the data from the 4th Korean National Environmental Health Survey (KoNEHS) 2018–2020. The focus was on 825 middle and high school students aged 13–18 years, whose blood mercury levels were measured. A survey on dietary and lifestyle habits was also conducted. Blood mercury levels were categorized by geometric median values, and associations with overweight status and seafood consumption were examined using a generalized linear model.
Results:
The geometric mean blood mercury level for the entire sample was 1.37 μg/L, with levels of 1.31 μg/L in normal-weight individuals and 1.43 μg/L in overweight individuals, showing a statistically significant difference between the two groups. After adjusting for other variables, blood mercury levels were significantly associated with overweight status (estimate: 0.084; p = 0.018; 95% confidence interval [CI]: 0.015–0.153), consumption of large fish and tuna more than once a week (estimate: 0.18; p = 0.001; 95% CI: 0.077–0.284), and consumption of fish once a week or more (estimate: 0.147; p = 0.004; 95% CI: 0.043–0.250).
Conclusions
In adolescents, a higher BMI and an increased consumption of large fish, tuna, and fish were associated with higher blood mercury levels. Notably, a stronger association was found between large fish consumption and blood mercury levels in the overweight group. These findings suggest the need to moderate seafood consumption and establish more proactive mercury exposure standards for adolescents.
3.Association of weight and dietary habits with high blood mercury levels in Korean adolescents: data from the KoNEHS cycle 4, 2018-2020
Ji Hoon KIM ; Minju JUNG ; Jaewon MUN ; Dong-Jae SEO ; Jong-Han LEEM ; Shin-Goo PARK ; Dong-Wook LEE ; Hyung Doo KIM ; Hwan-Cheol KIM
Annals of Occupational and Environmental Medicine 2025;37(1):e5-
Background:
Humans are exposed to mercury primarily in its highly toxic form, methyl mercury, which is known to have adverse effects on various organs and systems. The negative impact of mercury exposure on the growth, development, and mental health of children, from infancy to adolescence, is well-documented. However, there are no internationally standardized safe limits for mercury exposure. This study investigated the impact of dietary habits and higher body mass index (BMI) on blood mercury levels in adolescents.
Methods:
This study analyzed the data from the 4th Korean National Environmental Health Survey (KoNEHS) 2018–2020. The focus was on 825 middle and high school students aged 13–18 years, whose blood mercury levels were measured. A survey on dietary and lifestyle habits was also conducted. Blood mercury levels were categorized by geometric median values, and associations with overweight status and seafood consumption were examined using a generalized linear model.
Results:
The geometric mean blood mercury level for the entire sample was 1.37 μg/L, with levels of 1.31 μg/L in normal-weight individuals and 1.43 μg/L in overweight individuals, showing a statistically significant difference between the two groups. After adjusting for other variables, blood mercury levels were significantly associated with overweight status (estimate: 0.084; p = 0.018; 95% confidence interval [CI]: 0.015–0.153), consumption of large fish and tuna more than once a week (estimate: 0.18; p = 0.001; 95% CI: 0.077–0.284), and consumption of fish once a week or more (estimate: 0.147; p = 0.004; 95% CI: 0.043–0.250).
Conclusions
In adolescents, a higher BMI and an increased consumption of large fish, tuna, and fish were associated with higher blood mercury levels. Notably, a stronger association was found between large fish consumption and blood mercury levels in the overweight group. These findings suggest the need to moderate seafood consumption and establish more proactive mercury exposure standards for adolescents.
4.Evaluation of Value-Based, Community-Centered Primary Care: A Case Study of Anseong Health Welfare Social Cooperative
Jong-Han LEEM ; Soon ho LEE ; Min Kyung LIM ; Eunbyoul AHN ; Younhee KIM
Korean Journal of Family Practice 2024;14(2):66-74
This study evaluated the feasibility of implementing a value-based, community-centered primary care model in South Korea by focusing on the Anseong Health Welfare Social Cooperative (Anseong Medicoop) as a case study. Anseong Medicoop restructured its existing NaHaengSi (“time for caring for oneself”) program into a community-centered healthcare model and provides services to 1,517 participants. This healthcare model categorized participants into two groups: disease prevention and chronic disease management. Service provision encompassed five stages: registration and categorization, initial examination, comprehensive assessment and planning, service delivery, and monitoring and evaluation. By emphasizing comprehensive community-centered activities, preventive services, and appropriate medical treatments, Anseong Medicoop possesses a robust foundation for the effective implementation of this model. The high levels of satisfaction observed in service evaluations provide further evidence of its success. Anseong Medicoop’s healthcare model demonstrated the feasibility of a community-centered primary care approach in South Korea. This study highlights the potential for the successful implementation of a value-based, community-centered primary care model in South Korea if operational challenges are sufficiently addressed and a new payment system is introduced.
5.Effect of job satisfaction on depression after adjusting for satisfaction with other life domains
SeongCheol YANG ; Ji Hoon KIM ; Minju JUNG ; Hwan-Cheol KIM ; Jong-Han LEEM ; Shin-Goo PARK
Annals of Occupational and Environmental Medicine 2024;36(1):e8-
Studies on the association between job satisfaction and depression have often been reported. However, no study has examined how job satisfaction impacts depression while considering satisfaction with other aspects of life. In this study, we evaluated the effect of job satisfaction on depression after adjusting for satisfaction with other domains of life. We used data from the 16th wave of the Korean Welfare Panel Study. A total of 3568 current employees without depression who completed a survey were included. Depression was measured using the abbreviated version of the CES-D scale. Various types of satisfaction, including job satisfaction, were measured using single-item questions and a 5-point Likert scale. The association between job satisfaction and depression after considering satisfaction with other life domains was analyzed using a multiple logistic regression model. Crude models showed a significant association between job satisfaction and depression in males (odds ratio [OR]: 7.90; 95% confidence interval [CI]: 4.11–15.23) and females (OR: 7.12; 95% CI: 4.40–11.50). When adjusted for sociodemographic factors, health-related factors, and work-related factors, the association remained significant in males (OR: 6.20; 95% CI: 3.10–12.41) and females (OR: 6.28; 95% confidence interval (CI): 3.79–10.40). However, when satisfaction with other life domains was included, the association remained significant only in females (OR: 3.55; 95% CI: 1.93–6.50). This study shows an association between job satisfaction and depression in Korean employees. However, when satisfaction with other life domains was considered, this association remained significant only in women. Regular screening of job satisfaction should be considered as a means of preventing and managing depression among female employees.
6.Evaluation of Value-Based, Community-Centered Primary Care: A Case Study of Anseong Health Welfare Social Cooperative
Jong-Han LEEM ; Soon ho LEE ; Min Kyung LIM ; Eunbyoul AHN ; Younhee KIM
Korean Journal of Family Practice 2024;14(2):66-74
This study evaluated the feasibility of implementing a value-based, community-centered primary care model in South Korea by focusing on the Anseong Health Welfare Social Cooperative (Anseong Medicoop) as a case study. Anseong Medicoop restructured its existing NaHaengSi (“time for caring for oneself”) program into a community-centered healthcare model and provides services to 1,517 participants. This healthcare model categorized participants into two groups: disease prevention and chronic disease management. Service provision encompassed five stages: registration and categorization, initial examination, comprehensive assessment and planning, service delivery, and monitoring and evaluation. By emphasizing comprehensive community-centered activities, preventive services, and appropriate medical treatments, Anseong Medicoop possesses a robust foundation for the effective implementation of this model. The high levels of satisfaction observed in service evaluations provide further evidence of its success. Anseong Medicoop’s healthcare model demonstrated the feasibility of a community-centered primary care approach in South Korea. This study highlights the potential for the successful implementation of a value-based, community-centered primary care model in South Korea if operational challenges are sufficiently addressed and a new payment system is introduced.
7.Effect of job satisfaction on depression after adjusting for satisfaction with other life domains
SeongCheol YANG ; Ji Hoon KIM ; Minju JUNG ; Hwan-Cheol KIM ; Jong-Han LEEM ; Shin-Goo PARK
Annals of Occupational and Environmental Medicine 2024;36(1):e8-
Studies on the association between job satisfaction and depression have often been reported. However, no study has examined how job satisfaction impacts depression while considering satisfaction with other aspects of life. In this study, we evaluated the effect of job satisfaction on depression after adjusting for satisfaction with other domains of life. We used data from the 16th wave of the Korean Welfare Panel Study. A total of 3568 current employees without depression who completed a survey were included. Depression was measured using the abbreviated version of the CES-D scale. Various types of satisfaction, including job satisfaction, were measured using single-item questions and a 5-point Likert scale. The association between job satisfaction and depression after considering satisfaction with other life domains was analyzed using a multiple logistic regression model. Crude models showed a significant association between job satisfaction and depression in males (odds ratio [OR]: 7.90; 95% confidence interval [CI]: 4.11–15.23) and females (OR: 7.12; 95% CI: 4.40–11.50). When adjusted for sociodemographic factors, health-related factors, and work-related factors, the association remained significant in males (OR: 6.20; 95% CI: 3.10–12.41) and females (OR: 6.28; 95% confidence interval (CI): 3.79–10.40). However, when satisfaction with other life domains was included, the association remained significant only in females (OR: 3.55; 95% CI: 1.93–6.50). This study shows an association between job satisfaction and depression in Korean employees. However, when satisfaction with other life domains was considered, this association remained significant only in women. Regular screening of job satisfaction should be considered as a means of preventing and managing depression among female employees.
8.Evaluation of Value-Based, Community-Centered Primary Care: A Case Study of Anseong Health Welfare Social Cooperative
Jong-Han LEEM ; Soon ho LEE ; Min Kyung LIM ; Eunbyoul AHN ; Younhee KIM
Korean Journal of Family Practice 2024;14(2):66-74
This study evaluated the feasibility of implementing a value-based, community-centered primary care model in South Korea by focusing on the Anseong Health Welfare Social Cooperative (Anseong Medicoop) as a case study. Anseong Medicoop restructured its existing NaHaengSi (“time for caring for oneself”) program into a community-centered healthcare model and provides services to 1,517 participants. This healthcare model categorized participants into two groups: disease prevention and chronic disease management. Service provision encompassed five stages: registration and categorization, initial examination, comprehensive assessment and planning, service delivery, and monitoring and evaluation. By emphasizing comprehensive community-centered activities, preventive services, and appropriate medical treatments, Anseong Medicoop possesses a robust foundation for the effective implementation of this model. The high levels of satisfaction observed in service evaluations provide further evidence of its success. Anseong Medicoop’s healthcare model demonstrated the feasibility of a community-centered primary care approach in South Korea. This study highlights the potential for the successful implementation of a value-based, community-centered primary care model in South Korea if operational challenges are sufficiently addressed and a new payment system is introduced.
9.Effect of job satisfaction on depression after adjusting for satisfaction with other life domains
SeongCheol YANG ; Ji Hoon KIM ; Minju JUNG ; Hwan-Cheol KIM ; Jong-Han LEEM ; Shin-Goo PARK
Annals of Occupational and Environmental Medicine 2024;36(1):e8-
Studies on the association between job satisfaction and depression have often been reported. However, no study has examined how job satisfaction impacts depression while considering satisfaction with other aspects of life. In this study, we evaluated the effect of job satisfaction on depression after adjusting for satisfaction with other domains of life. We used data from the 16th wave of the Korean Welfare Panel Study. A total of 3568 current employees without depression who completed a survey were included. Depression was measured using the abbreviated version of the CES-D scale. Various types of satisfaction, including job satisfaction, were measured using single-item questions and a 5-point Likert scale. The association between job satisfaction and depression after considering satisfaction with other life domains was analyzed using a multiple logistic regression model. Crude models showed a significant association between job satisfaction and depression in males (odds ratio [OR]: 7.90; 95% confidence interval [CI]: 4.11–15.23) and females (OR: 7.12; 95% CI: 4.40–11.50). When adjusted for sociodemographic factors, health-related factors, and work-related factors, the association remained significant in males (OR: 6.20; 95% CI: 3.10–12.41) and females (OR: 6.28; 95% confidence interval (CI): 3.79–10.40). However, when satisfaction with other life domains was included, the association remained significant only in females (OR: 3.55; 95% CI: 1.93–6.50). This study shows an association between job satisfaction and depression in Korean employees. However, when satisfaction with other life domains was considered, this association remained significant only in women. Regular screening of job satisfaction should be considered as a means of preventing and managing depression among female employees.
10.Evaluation of Value-Based, Community-Centered Primary Care: A Case Study of Anseong Health Welfare Social Cooperative
Jong-Han LEEM ; Soon ho LEE ; Min Kyung LIM ; Eunbyoul AHN ; Younhee KIM
Korean Journal of Family Practice 2024;14(2):66-74
This study evaluated the feasibility of implementing a value-based, community-centered primary care model in South Korea by focusing on the Anseong Health Welfare Social Cooperative (Anseong Medicoop) as a case study. Anseong Medicoop restructured its existing NaHaengSi (“time for caring for oneself”) program into a community-centered healthcare model and provides services to 1,517 participants. This healthcare model categorized participants into two groups: disease prevention and chronic disease management. Service provision encompassed five stages: registration and categorization, initial examination, comprehensive assessment and planning, service delivery, and monitoring and evaluation. By emphasizing comprehensive community-centered activities, preventive services, and appropriate medical treatments, Anseong Medicoop possesses a robust foundation for the effective implementation of this model. The high levels of satisfaction observed in service evaluations provide further evidence of its success. Anseong Medicoop’s healthcare model demonstrated the feasibility of a community-centered primary care approach in South Korea. This study highlights the potential for the successful implementation of a value-based, community-centered primary care model in South Korea if operational challenges are sufficiently addressed and a new payment system is introduced.

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