In recent decades, both asthma prevalence and incidence have been increasing worldwide,
not only due to the genetic background, but mainly because of the effect of a wide number of …

Objective The best combination of questions to define asthma in epidemiological asthma
studies is not known. We summarized the operational definitions of asthma used in …

Background The prevalence of allergic rhinitis (AR) has increased worldwide in recent
decades. This study was conducted to investigate the prevalence of self‐reported AR and …

Background The worldwide increase in the prevalence of asthma has made it a major public‐
health concern. We aimed to identify the prevalence of asthma and asthma symptoms in …

Abstract The Control of Allergic Rhinitis and Asthma Test (CARAT) is a patient‐reported
outcome measurement (PROM) assessing the control of asthma and allergic rhinitis (AR) at …

Different subsets of asthma patients may be recognized according to the exposure trigger
and the frequency and severity of clinical signs and symptoms. Regarding the exposure …

Background Allergic rhinitis (AR) and asthma may affect health-related quality of life.
However, national estimates on the quality of life of patients with AR or asthma are lacking …

Objectives High-quality data are crucial for guiding decision-making and practising evidence-
based healthcare, especially if previous knowledge is lacking. Nevertheless, data quality …

Objectives Anxiety and depression are relevant comorbidities in asthma, but, in Portugal and
Spain, data on this topic are scarce. We assessed, in patients with asthma, the frequency of …

Several previous studies have connected asthma exacerbations with environmental factors
such as pollutants. However, the majority do not analyze the information spatially. The …