Association of improved air quality with lung development in children.

ABSTRACT:

Background

Air-pollution levels have been trending downward progressively over the past several decades in southern California, as a result of the implementation of air quality-control policies. We assessed whether long-term reductions in pollution were associated with improvements in respiratory health among children.

Methods

As part of the Children's Health Study, we measured lung function annually in 2120 children from three separate cohorts corresponding to three separate calendar periods: 1994-1998, 1997-2001, and 2007-2011. Mean ages of the children within each cohort were 11 years at the beginning of the period and 15 years at the end. Linear-regression models were used to examine the relationship between declining pollution levels over time and lung-function developm

SUBMITTER: Gauderman WJ 

PROVIDER: S-EPMC4430551 | biostudies-literature | 2015 Mar

REPOSITORIES: biostudies-literature