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Table 2 Demographic data, antioxidant vitamins and IQ (Stanford Binet) of the study population

From: Cognitive functions and anti-oxidant in children with sickle cell disease: A single center based study

Variables SCD Group (n = 55) Control (n = 55) P value
Age (years) (Mean ± SD) 10.7 ± 3.1 12.5 ± 2.4 0.109
Gender n (%) Male 20 (36.4%) 26 (47.3%) 0.246
Female 35 (63.6%) 29 (52.7%)
IQ score (Mean ± SD) 75.6 ± 17.4 102.0 ± 9.5 0.01*
Vitamin E (mg/dl) (Mean ± SD) 3.0 ± 0.6 15.0 ± 2.5 <0.001*
Selenium (μg/L) (Mean ± SD) 27.9 ± 18.4 110 ± 7.8 <0.001*
  1. *Statistically significant, n = number, SD = standard deviation, IQ = intelligence quotient