2. What is Known About Asthma? Asthma is one of the most common chronic diseases worldwide. The prevalence of asthma symptoms in children varies from 1 to more than 30% in different populations and is increasing in most countries among young children.
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8. Classification of Asthma by level of Control One in any week One or more/year None Exacerbations <80% predicted or personal best Normal Lung function (PEF or FEV1) More than twice/week None(twice or less/week) Need for reliever/ rescue treatment Any None Nocturnal symptoms/ awakening Any None Limitations of activities Three or more features of partly controlled asthma present in any week More than twice/week None( twice or less/week) Daytime symptoms Uncontrolled Partly (any measure present in any week) Controlled(all of the following) Characteristic Levels of Asthma Control