Further evaluations which did show statistical significance (p < 0.05) in favour of Xolair included reductions in severe exacerbations (where patient’ s lung function was reduced to below 60% of personal best and requiring systemic corticosteroids) and asthma-related emergency visits (comprised of hospitalisations, emergency room, and unscheduled doctor visits), and improvements in Physician’ s overall assessment of treatment effectiveness, Asthma-related Quality of Life (AQL), asthma symptoms and lung function.