… If the article was a peer reviewed epidemiologic study and the prevalence of asthma and
the asthma symptoms were reported in the article, then the article was considered for quality …

… asthma symptoms and their effects were evaluated in this study. Among asthma symptoms
in children and adolescents, wheezing had the most prevalence (17% in children and 19% in …

… asthma symptoms. In some studies, the virus has been demonstrated an association between
viral infection and the severity of asthma symptoms (… % of asthmatic children were positive …

… The highest asthma prevalence in children and adults was 35.4% in Tehran, Iran by ISAAC
… questionnaire and the lowest prevalence was 1% in Kermanshah, Iran by ISAAC and 2% in …

… of asthma in Tehran Province and the lowest in Kermanshah … , the maximum prevalence of
asthma in Iranian children aged 6 to 7 … This trend in the prevalence of asthma suggests that …

… The aim of this study was to determine the prevalence of asthma and respiratory symptoms
… prevalence of asthma related symptoms in the present study strongly suggests that asthma is …

… asthma in the last 12 months. Statistically, significant relationship was observed between
asthma symptoms … factors and severity of asthma symptoms in children of Kermanshah, IRAN: …

… Background: Asthma is one of the most common … asthma. This review was conducted to
investigate the relation between ambient temperature and exacerbations of asthma in children…

… diagnosed asthma, and exercise induced asthma… asthma symptoms. Furthermore, most of
Iranian studies on the prevalence of asthma have used clinical asthma and asthma symptoms …

… the prevalence of asthma in children under the age of 19 … of asthma such as the International
Study of Asthma and Allergies … and severity of asthma symptoms in children of Kermanshah, …