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The international collaboration on air pollution and pregnancy outcomes: Initial results

Title
The international collaboration on air pollution and pregnancy outcomes: Initial results
Authors
Parker J.D.Rich D.Q.Glinianaia S.V.Leem J.H.Wartenberg D.Bell M.L.Bonzini M.Brauer M.Darrow L.Gehring U.Gouveia N.Grillo P.Ha E.van den Hooven Hooven E.H.Jalaludin B.Jesdale B.M.Lepeule J.Morello-Frosch R.Morgan G.G.Slama R.Pierik F.H.Pesatori A.C.Sathyanarayana S.Seo J.Strickland M.Tamburic L.Woodruff T.J.
Ewha Authors
하은희
SCOPUS Author ID
하은희scopus
Issue Date
2011
Journal Title
Environmental Health Perspectives
ISSN
0091-6765JCR Link
Citation
vol. 119, no. 7, pp. 1023 - 1028
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Background: The findings of prior studies of air pollution effects on adverse birth outcomes are difficult to synthesize because of differences in study design. Objectives: The International Collaboration on Air Pollution and Pregnancy Outcomes was formed to understand how differences in research methods contribute to variations in findings. We initiated a feasibility study to a) assess the ability of geographically diverse research groups to analyze their data sets using a common protocol and b) perform location-specific analyses of air pollution effects on birth weight using a standardized statistical approach. Methods: Fourteen research groups from nine countries participated. We developed a protocol to estimate odds ratios (ORs) for the association between particulate matter ≤ 10 μm in aerodynamic diameter (PM 10) and low birth weight (LBW) among term births, adjusted first for socioeconomic status (SES) and second for additional location-specific variables. Results: Among locations with data for the PM 10 analysis, ORs estimating the relative risk of term LBW associated with a 10-μg/m 3 increase in average PM 10 concentration during pregnancy, adjusted for SES, ranged from 0.63 [95% confidence interval (CI), 0.30-1.35] for the Netherlands to 1.15 (95% CI, 0.61-2.18) for Vancouver, with six research groups reporting statistically significant adverse associations. We found evidence of statistically significant heterogeneity in estimated effects among locations. Conclusions: Variability in PM 10-LBW relationships among study locations remained despite use of a common statistical approach. A more detailed meta-analysis and use of more complex protocols for future analysis may uncover reasons for heterogeneity across locations. However, our findings confirm the potential for a diverse group of researchers to analyze their data in a standardized way to improve understanding of air pollution effects on birth outcomes.
DOI
10.1289/ehp.1002725
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의학전문대학원 > 의학과 > Journal papers
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