This cohort prospective study was carried out on 100 children
in the age group of 6–16 years who attended the outpatient
pediatric clinic Benha University hospital with upper or lower
respiratory tract infection, 50 patients with IDA and 50 children
without IDA and they were examined and investigated
for diagnosis of bronchial asthma in the period from May
2011 to May 2012, after an oral concept of their parents, they
were classified into: