“…Table 2 shows the relation between symptoms, risk factors and relieving factors and the outcome of an asthmatic attack, using the need for hospital admission as an indicator of the severity of an asthmatic attack. The need for hospital admission was significantly higher in those who complained of both United Kingdom [8,9]. Moreover, the prevalence of asthma in the 6-12 years age group shows a more than a 5-fold difference in prevalence between countries, ranging from 4.1%-32.1%, with the lowest rates in India, Indonesia, Islamic Republic of Iran and Malaysia and the highest rates in Australia, Brazil, Costa Rica, New Zealand and Panama [8,10].…”