Parameter Number %
Patients enrolled 75 100% 
Patients completing study 75  100%
Number of treated operative sides 214  100%
Mean (SD) age (year) 3.80 (2.14)  
Age range (year) 0.11-10  
Age groups 
≤3 years 38 50.67%
3-10 years 37 49.33%
Gender 
Male 48 64.00%
Female 27 36.00%
Race 
Arab/Oriental 71 94.67%
American 4 5.33%
Diagnosis classification 
Primary* 73 97.33%
Revision 2 2.67%
Diagnosis specification 
Recurrent tonsillitis 47 62.67%
Obstructive sleep apnea (OSA) 19 25.33%
Recurrent otitis media (OM) 6 8.00%
Delayed speech 3 4.00%
*Indicates no prior surgery, SD: Standard deviation. 
Table 1: Demographic and baseline characteristics