Time-to-event analysis of fine particle air pollution and preterm birth: results from North Carolina, 2001-2005.

@article{Chang2012TimetoeventAO,
  title={Time-to-event analysis of fine particle air pollution and preterm birth: results from North Carolina, 2001-2005.},
  author={Howard H. Chang and Brian J. Reich and Marie Lynn Miranda},
  journal={American journal of epidemiology},
  year={2012},
  volume={175 2},
  pages={91-8}
}
Exposure to air pollution during pregnancy has been suggested to be a risk factor for preterm birth; however, epidemiologic evidence remains mixed and limited. The authors examined the association between ambient levels of particulate matter <2.5 μm in aerodynamic diameter (PM(2.5)) and the risk of preterm birth in North Carolina during the period 2001-2005. They estimated the risks of cumulative and lagged average exposures to PM(2.5) during pregnancy via a 2-stage discrete-time survival model… CONTINUE READING
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