This review of trends in worldwide asthma prevalence starts with defining how asthma
prevalence is measured in populations and how it is analysed. Four population studies of …

Introduction Asthma, allergic rhinitis, atopic dermatitis, and food allergy affect approximately
20% of the global population. Few studies describe the burden of the totality of these …

Background Asthma has a significant impact on people of all ages, particularly children. A
lack of universally accepted case definition and confirmatory tests and a poor understanding …

Background Previous attempts to characterise the burden of chronic respiratory diseases
have focused only on specific disease conditions, such as chronic obstructive pulmonary …

Asthma is the most common chronic disease in children, imposing a consistent burden on
health system. In recent years, prevalence of asthma symptoms became globally increased …

Background and objective The question of whether children's exposure to traffic-related air
pollution (TRAP) contributes to their development of asthma is unresolved. We conducted a …

The global prevalence, morbidity and mortality related to childhood asthma among children
has increased significantly over the last 40 years. Although asthma is recognized as the …

Aims Asthma, hay fever and eczema are three common chronic conditions. There have been
no recent multi-country data on the burden of these three conditions in adults; the aims of …

The atopic march refers to the natural history of allergic diseases as they develop during
infancy and childhood. Introduced by the American allergists AF Coca and RA Cooke in …

Environmental exposures interplay with human host factors to promote the development and
progression of allergic diseases. The worldwide prevalence of allergic disease is rising as a …