Association of Changes in Air Quality With Bronchitic Symptoms in Children in California, 1993-2012.

ABSTRACT:

Importance

Childhood bronchitic symptoms are significant public and clinical health problems that produce a substantial burden of disease. Ambient air pollutants are important determinants of bronchitis occurrence.

Objective

To determine whether improvements in ambient air quality in Southern California were associated with reductions in bronchitic symptoms in children.

Design, setting, and participants

A longitudinal study involving 4602 children (age range, 5-18 years) from 3 cohorts was conducted during the 1993-2001, 1996-2004, and 2003-2012 years in 8 Southern California communities. A multilevel logistic model was used to estimate the association of changes in pollution levels with bronchitic symptoms.

Exposures

Average concentrations of nitrogen dioxide,

SUBMITTER: Berhane K 

PROVIDER: S-EPMC5679287 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature