Variations in peak expiratory flow measurements associated to air pollution and allergic sensitization in children in Sao Paulo, Brazil.

ABSTRACT:

Background

In the last 20 years, there has been an increase in the incidence of allergic respiratory diseases worldwide and exposure to air pollution has been discussed as one of the factors associated with this increase. The objective of this study was to investigate the effects of air pollution on peak expiratory flow (PEF) and FEV1 in children with and without allergic sensitization.

Methods

Ninety-six children were followed from April to July, 2004 with spirometry measurements. They were tested for allergic sensitization (IgE, skin prick test, eosinophilia) and asked about allergic symptoms. Air pollution, temperature, and relative humidity data were available.

Results

Decrements in PEF were observed with previous 24-hr average exposure to air pollution, as well a

SUBMITTER: Correia-Deur JE 

PROVIDER: S-EPMC3424324 | biostudies-literature | 2012 Dec

REPOSITORIES: biostudies-literature