GSTM1 and sickle cell disease: This table presents the mean, standard deviation (SD), F-statistics, and p-values for laboratory parameters (hemoglobin (Hb), hematocrit (Hct), white blood cell count (WBC), platelet count (Plt), reticulocytes (retics), ferritin levels, and mean corpuscular volume (MCV)) across different clinical indications, such as acute chest syndrome, splenic sequestration, and stroke prevention, in pediatric sickle cell anemia patients.