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

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dc.contributor.authorKim, Yoonheeko
dc.contributor.authorShengNg, Chris Fookko
dc.contributor.authorChung, Yeonseungko
dc.contributor.authorKim, Hoko
dc.contributor.authorHonda, Yasushiko
dc.contributor.authorGuo, Yue Leonko
dc.contributor.authorLim, Youn-Heeko
dc.contributor.authorChen, Bing-Yuko
dc.contributor.authorPage, Lisa A.ko
dc.contributor.authorHashizume, Masahiroko
dc.date.accessioned2018-04-24T06:33:41Z-
dc.date.available2018-04-24T06:33:41Z-
dc.date.created2018-04-18-
dc.date.created2018-04-18-
dc.date.issued2018-03-
dc.identifier.citationENVIRONMENTAL HEALTH PERSPECTIVES, v.126, no.3-
dc.identifier.issn0091-6765-
dc.identifier.urihttp://hdl.handle.net/10203/241425-
dc.description.abstractBACKGROUND: 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 <= 10 mu m (PM10), aerodynamic diameter <= 2.5 mu m (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.-
dc.languageEnglish-
dc.publisherUS DEPT HEALTH HUMAN SCIENCES PUBLIC HEALTH SCIENCE-
dc.subjectRISK-
dc.subjectMETAANALYSES-
dc.subjectTEMPERATURE-
dc.subjectEXPOSURE-
dc.titleAir Pollution and Suicide in 10 Cities in Northeast Asia: A Time-Stratified Case-Crossover Analysis-
dc.typeArticle-
dc.identifier.wosid000428419000004-
dc.identifier.scopusid2-s2.0-85045047399-
dc.type.rimsART-
dc.citation.volume126-
dc.citation.issue3-
dc.citation.publicationnameENVIRONMENTAL HEALTH PERSPECTIVES-
dc.identifier.doi10.1289/EHP2223-
dc.contributor.localauthorChung, Yeonseung-
dc.contributor.nonIdAuthorKim, Yoonhee-
dc.contributor.nonIdAuthorShengNg, Chris Fook-
dc.contributor.nonIdAuthorKim, Ho-
dc.contributor.nonIdAuthorHonda, Yasushi-
dc.contributor.nonIdAuthorGuo, Yue Leon-
dc.contributor.nonIdAuthorLim, Youn-Hee-
dc.contributor.nonIdAuthorChen, Bing-Yu-
dc.contributor.nonIdAuthorPage, Lisa A.-
dc.contributor.nonIdAuthorHashizume, Masahiro-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordPlusRISK-
dc.subject.keywordPlusMETAANALYSES-
dc.subject.keywordPlusTEMPERATURE-
dc.subject.keywordPlusEXPOSURE-
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