Dataset Information

Municipal Residence Level of Long-Term PM10 Exposure Associated with Obesity among Young Adults in Seoul, Korea.

ABSTRACT: long-term effects of ambient pollutants used to be defined in cohort studies using biomarkers. Health effects on young adults from long-term exposure to particulate matters (PM) in residential ambiance have received less attention. using the data of population-representative aged 19-29 in Seoul, the relationship between obesity and PM10 levels of the living district was examined. We defined obesity as Body Mass Index (BMI) 25 kg/m2 and more. Survey logistic regression was conducted according to individual residence periods in the current municipality. Individual characteristics were adjusted overall and were age-specific; aged 19-24 and 25-29. study population was 3655 (1680 (46%) men and 1933 aged 19-24 (52.9%)) individuals. Relationship between length of residence in municipalities with a greater level of PM10 from 2001-2005 and obesity was increased over the residing period; 10 years ≤ (odds ratio (OR) 1.071, 95% confidence interval (CI) 0.969-1.185), 15 years ≤ (1.120, 1.006-1.247), and 20 years ≤ (1.158, 1.034-1.297) in aged 19-29. Age-specific effects showed slight differences. Although PM10 levels are currently decreasing, higher levels of PM10 exposure in the residential area during the earlier lifetime may contribute to obesity increase among young adults.

SUBMITTER: Kim J

PROVIDER: S-EPMC7579278 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature

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Municipal Residence Level of Long-Term PM<sub>10</sub> Exposure Associated with Obesity among Young Adults in Seoul, Korea.

Kim Jayeun J Yoon Kyuhyun K

International journal of environmental research and public health 20200924 19

<h4>Background</h4>long-term effects of ambient pollutants used to be defined in cohort studies using biomarkers. Health effects on young adults from long-term exposure to particulate matters (PM) in residential ambiance have received less attention.<h4>Methods</h4>using the data of population-representative aged 19-29 in Seoul, the relationship between obesity and PM<sub>10</sub> levels of the living district was examined. We defined obesity as Body Mass Index (BMI) 25 kg/m<sup>2</sup> and more ...[more]

PMID: 32987676

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Project description:IntroductionAmid the growing global concern about obesity, young adults in South Korea are particularly affected, with 30.8% of people aged 19-34 classified as obese. Given the urban-centric lifestyle of Korean youth, understanding the relationship between daily life activities and the urban environment holds great promise for effective interventions. This study aims to explore the daily life activities of young adults with obesity in Seoul, a city known for its highly accessible and compact environment. The research questions explore the interaction between daily life activities and the neighbourhood environment and consider weight management in an urban context.Methods and analysisThis study uses an extended qualitative geographic information system approach to explore a district in Seoul with a highly accessible and compact urban environment. The sample comprises young adults with obesity (aged 19-34) residing in the study area, with recruitment targeting up to 51 participants for data saturation. A qualitative, multimethod approach combines descriptive and spatiotemporal data collection. Descriptive data are being collected, including in-depth interviews and photographs of daily food consumption. Spatial data collection involves field observations, cognitive mapping and mobile Global Positioning System tracking. Temporal data is gathered through participants drawing round timetables, detailing their daily schedules. Data analysis will entail thematic analysis of the interview data and content analysis of the spatiotemporal data. For the integrated analysis, pattern finding will be used to synthesise the data.Ethics and disseminationThis study was approved by the institutional review board of Seoul National University on 11 July 2022. Data collection and curation are currently underway, and the results of the analysis will be shared with the scientific community at international conferences and peer-reviewed journals. We are planning an open seminar to share our research findings with relevant policy-makers, community organisations and health professionals.

Project description:ObjectiveTo reduce premature deaths due to secondhand smoke (SHS) exposure among non-smokers, the Republic of Korea (ROK) adopted changes to the National Health Promotion Act, which allowed local governments to enact municipal ordinances to strengthen their authority to designate smoke-free areas and levy penalty fines. In this study, we examined national trends in SHS exposure after the introduction of these municipal ordinances at the city level in 2010.MethodsWe used interrupted time series analysis to assess whether the trends of SHS exposure in the workplace and at home, and the primary cigarette smoking rate changed following the policy adjustment in the national legislation in ROK. Population-standardized data for selected variables were retrieved from a nationally representative survey dataset and used to study the policy action's effectiveness.ResultsFollowing the change in the legislation, SHS exposure in the workplace reversed course from an increasing (18% per year) trend prior to the introduction of these smoke-free ordinances to a decreasing (-10% per year) trend after adoption and enforcement of these laws (β 2 = 0.18, p-value = 0.07; β 3 = -0.10, p-value = 0.02). SHS exposure at home (β 2 = 0.10, p-value = 0.09; β 3 = -0.03, p-value = 0.14) and the primary cigarette smoking rate (β 2 = 0.03, p-value = 0.10; β 3 = 0.008, p-value = 0.15) showed no significant changes in the sampled period. Although analyses stratified by sex showed that the allowance of municipal ordinances resulted in reduced SHS exposure in the workplace for both males and females, they did not affect the primary cigarette smoking rate as much, especially among females.ConclusionStrengthening the role of local governments by giving them the authority to enact and enforce penalties on SHS exposure violation helped ROK to reduce SHS exposure in the workplace. However, smoking behaviors and related activities seemed to shift to less restrictive areas such as on the streets and in apartment hallways, negating some of the effects due to these ordinances. Future studies should investigate how smoke-free policies beyond public places can further reduce the SHS exposure in ROK.

Dataset Information

Municipal Residence Level of Long-Term PM10 Exposure Associated with Obesity among Young Adults in Seoul, Korea.

Publications

Municipal Residence Level of Long-Term PM<sub>10</sub> Exposure Associated with Obesity among Young Adults in Seoul, Korea.

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