Susceptibility to air pollution effects on mortality in Seoul, Korea: A case-crossover analysis of individual-level effect modifiers
Son, JY; Lee, JT; Kim, H; Yi, O; Bell, ML
HERO ID
1034976
Reference Type
Journal Article
Year
2012
Language
English
PMID
| HERO ID | 1034976 |
|---|---|
| In Press | No |
| Year | 2012 |
| Title | Susceptibility to air pollution effects on mortality in Seoul, Korea: A case-crossover analysis of individual-level effect modifiers |
| Authors | Son, JY; Lee, JT; Kim, H; Yi, O; Bell, ML |
| Journal | Journal of Exposure Science & Environmental Epidemiology |
| Volume | 22 |
| Issue | 3 |
| Page Numbers | 227-234 |
| Abstract | Air pollution's mortality effects may differ by subpopulation; however, few studies have investigated this issue in Asia. We investigated susceptibility to air pollutants on total, cardiovascular, and respiratory mortality in Seoul, Korea for the period 2000-2007. We applied time-stratified case-crossover analysis, which allows direct modeling of interaction terms, to estimate susceptibility based on sex, age, education, marital status, and occupation. An interquartile range increase in pollution was associated with odds ratios of 0.94 (95% confidence interval, 0.25-1.62), 2.27 (1.03-3.53), 1.94 (0.80-3.09), and 2.21 (1.00-3.43) for total mortality and 1.95 (0.64-3.27), 4.82 (2.18-7.54), 3.64 (1.46-5.87), and 4.32 (1.77-6.92) for cardiovascular mortality for PM(10), nitrogen dioxide (NO(2)), sulfur dioxide (SO(2)), and carbon monoxide (CO), respectively. Ozone effect estimates were positive, but not statistically significant. Results indicate that some populations are more susceptible than others. For total or cardiovascular mortality, associations were higher for males, those 65-74 years, and those with no education or manual occupation for some pollutants. For example, the odds ratio for SO(2) and cardiovascular mortality was 1.19 (1.03-1.37) times higher for those with manual occupations than professional occupations. Our findings provide evidence that some populations are more susceptible to the effects of air pollution than others, which has implications for public policy and risk assessment for susceptible subpopulations.Journal of Exposure Science and Environmental Epidemiology advance online publication, 7 March 2012; doi:10.1038/jes.2012.6. |
| Doi | 10.1038/jes.2012.6 |
| Pmid | 22395258 |
| Wosid | WOS:000302847300002 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Source: Web of Science 000302847300002 |
| Is Public | Yes |
| Language Text | English |
| Keyword | air pollution; effect modifiers; mortality; time-stratified case-crossover analysis; susceptible subpopulations |
| Is Qa | No |
| Relationship(s) |
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