Air Pollution and Suicide in 10 Cities in Northeast Asia: A Time-Stratified Case-Crossover Analysis

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Air Pollution and Suicide in 10 Cities in Northeast Asia : A Time-Stratified Case-Crossover Analysis. / Kim, Yoonhee; Ng, Chris Fook Sheng; Chung, Yeonseung; Kim, Ho; Honda, Yasushi; Guo, Yue Leon; Lim, Youn-Hee; Chen, Bing-Yu; Page, Lisa A; Hashizume, Masahiro.

I: Environmental Health Perspectives, Bind 126, Nr. 3, 037002, 2018.

Publikation: Bidrag til tidsskriftTidsskriftartikelfagfællebedømt

Harvard

Kim, Y, Ng, CFS, Chung, Y, Kim, H, Honda, Y, Guo, YL, Lim, Y-H, Chen, B-Y, Page, LA & Hashizume, M 2018, 'Air Pollution and Suicide in 10 Cities in Northeast Asia: A Time-Stratified Case-Crossover Analysis', Environmental Health Perspectives, bind 126, nr. 3, 037002. https://doi.org/10.1289/EHP2223

APA

Kim, Y., Ng, C. F. S., Chung, Y., Kim, H., Honda, Y., Guo, Y. L., Lim, Y-H., Chen, B-Y., Page, L. A., & Hashizume, M. (2018). Air Pollution and Suicide in 10 Cities in Northeast Asia: A Time-Stratified Case-Crossover Analysis. Environmental Health Perspectives, 126(3), [037002]. https://doi.org/10.1289/EHP2223

Vancouver

Kim Y, Ng CFS, Chung Y, Kim H, Honda Y, Guo YL o.a. Air Pollution and Suicide in 10 Cities in Northeast Asia: A Time-Stratified Case-Crossover Analysis. Environmental Health Perspectives. 2018;126(3). 037002. https://doi.org/10.1289/EHP2223

Author

Kim, Yoonhee ; Ng, Chris Fook Sheng ; Chung, Yeonseung ; Kim, Ho ; Honda, Yasushi ; Guo, Yue Leon ; Lim, Youn-Hee ; Chen, Bing-Yu ; Page, Lisa A ; Hashizume, Masahiro. / Air Pollution and Suicide in 10 Cities in Northeast Asia : A Time-Stratified Case-Crossover Analysis. I: Environmental Health Perspectives. 2018 ; Bind 126, Nr. 3.

Bibtex

@article{4f6e2f2bd300420c9880e4396c8fd5fb,
title = "Air Pollution and Suicide in 10 Cities in Northeast Asia: A Time-Stratified Case-Crossover Analysis",
abstract = "BACKGROUND: There is growing evidence suggesting an association between air pollution and suicide. However, previous findings varied depending on the type of air pollutant and study location.OBJECTIVES: We examined the association between air pollutants and suicide in 10 large cities in South Korea, Japan, and Taiwan.METHODS: We used a two-stage meta-analysis. First, we conducted a time-stratified case-crossover analysis to estimate the short-term association between nitrogen dioxide (NO2), sulfur dioxide (SO2), and particulate matter [aerodynamic diameter ≤10μm (PM10), aerodynamic diameter ≤2.5μm (PM2.5), and PM10–2.5] and suicide, adjusted for weather factors, day-of-week, long-term time trends, and season. Then, we conducted a meta-analysis to combine the city-specific effect estimates for NO2, SO2, and PM10 across 10 cities and for PM2.5 and PM10–2.5 across 3 cities. We first fitted single-pollutant models, followed by two-pollutant models to examine the robustness of the associations.RESULTS: Higher risk of suicide was associated with higher levels of NO2, SO2, PM10, and PM10–2.5 over multiple days. The combined relative risks (RRs) were 1.019 for NO2 (95% confidence interval [CI]: 0.999, 1.039), 1.020 for SO2 (95% CI: 1.005, 1.036), 1.016 for PM10 (95% CI: 1.004, 1.029), and 1.019 for PM10–2.5 (95% CI: 1.005, 1.033) per interquartile range (IQR) increase in the 0-1 d average level of each pollutant. We found no evidence of an association for PM2.5. Some of the associations, particularly for SO2 and NO2, were attenuated after adjusting for a second pollutant.CONCLUSIONS: Our findings suggest that higher levels of air pollution may be associated with suicide, and further research is merited to understand the underlying mechanisms. https://doi.org/10.1289/EHP2223.",
keywords = "Air Pollutants/toxicity, Air Pollution/adverse effects, Environmental Exposure, Humans, Nitrogen Dioxide/toxicity, Particulate Matter/toxicity, Republic of Korea, Suicide/statistics & numerical data, Sulfur Dioxide/toxicity",
author = "Yoonhee Kim and Ng, {Chris Fook Sheng} and Yeonseung Chung and Ho Kim and Yasushi Honda and Guo, {Yue Leon} and Youn-Hee Lim and Bing-Yu Chen and Page, {Lisa A} and Masahiro Hashizume",
year = "2018",
doi = "10.1289/EHP2223",
language = "English",
volume = "126",
journal = "Environmental Health Perspectives",
issn = "0091-6765",
publisher = "National Institute of Environmental Health Sciences",
number = "3",

}

RIS

TY - JOUR

T1 - Air Pollution and Suicide in 10 Cities in Northeast Asia

T2 - A Time-Stratified Case-Crossover Analysis

AU - Kim, Yoonhee

AU - Ng, Chris Fook Sheng

AU - Chung, Yeonseung

AU - Kim, Ho

AU - Honda, Yasushi

AU - Guo, Yue Leon

AU - Lim, Youn-Hee

AU - Chen, Bing-Yu

AU - Page, Lisa A

AU - Hashizume, Masahiro

PY - 2018

Y1 - 2018

N2 - BACKGROUND: There is growing evidence suggesting an association between air pollution and suicide. However, previous findings varied depending on the type of air pollutant and study location.OBJECTIVES: We examined the association between air pollutants and suicide in 10 large cities in South Korea, Japan, and Taiwan.METHODS: We used a two-stage meta-analysis. First, we conducted a time-stratified case-crossover analysis to estimate the short-term association between nitrogen dioxide (NO2), sulfur dioxide (SO2), and particulate matter [aerodynamic diameter ≤10μm (PM10), aerodynamic diameter ≤2.5μm (PM2.5), and PM10–2.5] and suicide, adjusted for weather factors, day-of-week, long-term time trends, and season. Then, we conducted a meta-analysis to combine the city-specific effect estimates for NO2, SO2, and PM10 across 10 cities and for PM2.5 and PM10–2.5 across 3 cities. We first fitted single-pollutant models, followed by two-pollutant models to examine the robustness of the associations.RESULTS: Higher risk of suicide was associated with higher levels of NO2, SO2, PM10, and PM10–2.5 over multiple days. The combined relative risks (RRs) were 1.019 for NO2 (95% confidence interval [CI]: 0.999, 1.039), 1.020 for SO2 (95% CI: 1.005, 1.036), 1.016 for PM10 (95% CI: 1.004, 1.029), and 1.019 for PM10–2.5 (95% CI: 1.005, 1.033) per interquartile range (IQR) increase in the 0-1 d average level of each pollutant. We found no evidence of an association for PM2.5. Some of the associations, particularly for SO2 and NO2, were attenuated after adjusting for a second pollutant.CONCLUSIONS: Our findings suggest that higher levels of air pollution may be associated with suicide, and further research is merited to understand the underlying mechanisms. https://doi.org/10.1289/EHP2223.

AB - BACKGROUND: There is growing evidence suggesting an association between air pollution and suicide. However, previous findings varied depending on the type of air pollutant and study location.OBJECTIVES: We examined the association between air pollutants and suicide in 10 large cities in South Korea, Japan, and Taiwan.METHODS: We used a two-stage meta-analysis. First, we conducted a time-stratified case-crossover analysis to estimate the short-term association between nitrogen dioxide (NO2), sulfur dioxide (SO2), and particulate matter [aerodynamic diameter ≤10μm (PM10), aerodynamic diameter ≤2.5μm (PM2.5), and PM10–2.5] and suicide, adjusted for weather factors, day-of-week, long-term time trends, and season. Then, we conducted a meta-analysis to combine the city-specific effect estimates for NO2, SO2, and PM10 across 10 cities and for PM2.5 and PM10–2.5 across 3 cities. We first fitted single-pollutant models, followed by two-pollutant models to examine the robustness of the associations.RESULTS: Higher risk of suicide was associated with higher levels of NO2, SO2, PM10, and PM10–2.5 over multiple days. The combined relative risks (RRs) were 1.019 for NO2 (95% confidence interval [CI]: 0.999, 1.039), 1.020 for SO2 (95% CI: 1.005, 1.036), 1.016 for PM10 (95% CI: 1.004, 1.029), and 1.019 for PM10–2.5 (95% CI: 1.005, 1.033) per interquartile range (IQR) increase in the 0-1 d average level of each pollutant. We found no evidence of an association for PM2.5. Some of the associations, particularly for SO2 and NO2, were attenuated after adjusting for a second pollutant.CONCLUSIONS: Our findings suggest that higher levels of air pollution may be associated with suicide, and further research is merited to understand the underlying mechanisms. https://doi.org/10.1289/EHP2223.

KW - Air Pollutants/toxicity

KW - Air Pollution/adverse effects

KW - Environmental Exposure

KW - Humans

KW - Nitrogen Dioxide/toxicity

KW - Particulate Matter/toxicity

KW - Republic of Korea

KW - Suicide/statistics & numerical data

KW - Sulfur Dioxide/toxicity

U2 - 10.1289/EHP2223

DO - 10.1289/EHP2223

M3 - Journal article

C2 - 29529596

VL - 126

JO - Environmental Health Perspectives

JF - Environmental Health Perspectives

SN - 0091-6765

IS - 3

M1 - 037002

ER -

ID: 230068190