Temporal variation in air pollution concentrations and preterm birth-a population based epidemiological study.

ABSTRACT: There is growing evidence of adverse birth outcomes due to exposure to air pollution during gestation. However, recent negative studies are also reported. The aim of this study was to assess the effect of ozone and vehicle exhaust exposure (NO(2)) on the length of the gestational period and risk of preterm delivery. We used data from the Swedish Medical Birth Registry on all vaginally delivered singleton births in the Greater Stockholm area who were conceived during 1987-1995 (n = 115,588). Daily average levels of NO(2) (from three measuring stations) and ozone (two stations) were used to estimate trimester and last week of gestation average exposures. Linear regression models were used to assess the association between the two air pollutants and three exposure windows, while logistic regr

SUBMITTER: Olsson D 

PROVIDER: S-EPMC3315074 | biostudies-literature | 2012 Jan

REPOSITORIES: biostudies-literature