Abstract: Introduction: Asthma is a complex, recurrent disease of the airways that causes shortness of breath, wheezing, and cough (particularly at night or early in the morning). Asthma is episodic in nature and usually reversible, either spontaneously or with treatment. However, chronic inflammation, associated with persistent symptoms, may contribute to airway remodeling that may not be completely reversible. Airflow limitation occurs as a result of varying degrees of airway hyper responsiveness, airway edema and bronchoconstriction. Materials and Methods: The study group consists of 106 school students living in Delhi for past 6 years. The prevalence of children having asthma is 7.5%. The control group, consist of sex and age matched 80 normal healthy individuals, who are school students. Taking 26 individuals as other group.Spiro-metric method was used to estimate lung function. In addition to.....
Key Words: Asthma, FEV1/FVC, CNG
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