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