Frontiers Jun 10 2026 Asthma is the most common chronic disease and one of the main causes of hospitalization among children. The Global Asthma Network has estimated that its global prevalence is 9.1% for children and 11.0% for adolescents, but this percentage varies greatly between countries, regions, and environments. Worldwide, the highest prevalence of pediatric asthma (above 20%) occurs in the British Isles and in parts of Oceania and the Middle East. Known risk factors for developing