Baseline characteristics of 19 patients with sickle cell disease who underwent tonsillectomy and adenoidectomy

Patients n19
Males10 (53%)
Age at surgery years6 (3.5–8)
Hb type
 SS17 (89.5%)
 SC2 (10.5%)
HU3 (16%)
EBT1 (5%)
Asthma#3 (16%)
Tonsil enlargement grading
 None2 (10.5%)
 Grade I1 (5%)
 Grade II2 (10.5%)
 Grade III7 (37%)
 Grade IV7 (37%)
Snoring ≥3 times a week+19 (100%)

Data are presented as n (%) or median (interquartile range), unless otherwise stated. Hb: haemoglobin; HU: hydroxyurea; EBT: exchange blood transfusion. #: Diagnosis was made in compliance with Global Initiative for Asthma guidelines [19]; : according to tonsil grading scale by Brodsky [34]; +: according to the current definition of snoring in sleep-disordered breathing [20].