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http://dx.doi.org/10.5668/JEHS.2008.34.5.361

Short-term Associations of Air Pollution with Postneonatal Infant Death in Seoul, Korea, 1999-2003  

Lee, Jong-Tae (Department of Public Health, Graduate School of Hanyang University)
Cho, Yong-Sung (Department of Public Health, Graduate School of Hanyang University)
Son, Ji-Young (Department of Public Health, Graduate School of Hanyang University)
Publication Information
Journal of Environmental Health Sciences / v.34, no.5, 2008 , pp. 361-368 More about this Journal
Abstract
Objective to assess whether exposure to air pollutants is associated with postneonatal infant death, using a timeseries methodology, between 1999 and 2003 in Seoul, Korea.. Methods We investigated the short-term effects of air pollution for 548,725 live births during the study period. The daily count of postneonatal infant deaths from all causes and from SIDS (sudden infant death syndrome) by birth order was analyzed by a Generalized Additive Poisson model, with controlling for the effects of seasonal trends, air temperature, relative humidity, barometric pressure, and day of the week as covariates. Results During the study period, we observed 699 deaths from all causes and 47 deaths from SIDS. We did not find any significant associations between daily mortality and ambient levels of air pollutants except for CO and $NO_2$. The estimated relative risk of postneonatal infant death from all causes was 1.17 (95% CI=1.04-1.32) and 1.16 (95% CI=1.03-1.29) by IQR (interquartile range) for CO and $NO_2$ respectively. Also, we observed no clear trend of the mortality effects of air pollution by birth orders. Conclusion In conclusion, our findings suggest that air pollution, in general, influenced adversely postneonatal infant death from all-cause and SIDS although it was not statistically significant. This study may support that the rationale.
Keywords
Air pollution; Postneonatal infant death; Birth order;
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