Title of article :
Worldwide time trends in the prevalence of symptoms of asthma, allergic rhinoconjunctivitis, and eczema in childhood: ISAAC Phases One and Three repeat multicountry cross-sectional surveys
Author/Authors :
M Innes Asher، نويسنده , , Stephen Montefort، نويسنده , , Bengt Bjorksten، نويسنده , , Christopher KW Lai، نويسنده , , David P Strachan، نويسنده , , Stephan K. Weiland، نويسنده , , Hywel Williams، نويسنده ,
Abstract :
Background
Data for trends in prevalence of asthma, allergic rhinoconjunctivitis, and eczema over time are scarce. We repeated the International Study of Asthma and Allergies in Childhood (ISAAC) at least 5 years after Phase One, to examine changes in the