Figure 2: Flow of patients
The demographic and clinical characteristics of included children are shown in Table1.
The median age of children was six months, ranging from 3 weeks to 20 months. Most were boys, and 92% were term children. The commonest symptom was noisy breathing in 44 (83%) children. The median age of appearance of noisy breathing was within 1st month. Stridor was present in 24 (45%) children commonly noticed at the end of the 2nd week of life.