ASH American Society of Hematology
CBT Cognitive behavioral therapy
CI Confidence interval
ED Emergency department
FU Follow-up
HA IQR Hospital admission Interquartile range
LDH Lactate acid dehydrogenase
LOS Length of hospital stay
MCV Mean corpuscular volume
NHLBI National Heart, Lung and Blood Institute
OPD RCT Outpatient department Randomized controlled trial
SCD Sickle cell disease
SD Standard deviation
USA United States of America
VOC Vaso-occlusive crisis
VR Virtual reality