Effect of circulating 25-hydroxyvitamin D and antioxidant capacity level on cognitive function parameters of children with idiopathic short stature

Egyptian Pediatric Association Gazette

Table 1 Characteristics data of the studied groups

Variable	Patients with ISS N = 60	Control N = 60	P value
Age (years)	10.16 ± 1.98	10.23 ± 1.54	0.83
Sex	32 (53.3%) male 28 (46.7%) female	34 (56.7%) male 26 (43.3%) female	0.71
Weight (kg)	23.46 ± 6.17	33.7 ± 7.68	0.0001**
Weight z score	− 2.63 ± 1.33	− 0.078 ± 0.72	0.0001**
Height (cm)	120.83 ± 12.4	138.43 ± 9.12	0.0001**
Height z score	− 3.0 ± 0.86	− 0.23 ± 0.86	0.0001**
BMI (kg/m²)	16.0 ± 3.16	17.36 ± 2.14	0.006*
BMI z score	− 0.89 ± 1.62	0.05 ± 0.76	0.0001**
Vit D (ng/ml) level	20.63 ± 7.35	32.18 ± 9.2	0.0001**
Percentage of vitamin D deficiency %	50(83.3%)	22 (36.7%)	0.0001**
TAC (mmol/L)	1.50 ± 0.6	2.27 ± 1.31	0.0001**
TOS (μmol/L)	0.29 ± 0.19	0.27 ± 0.19	0.57
OSI	21.1 ± 12	17.94 ± 14.77	0.20

ISS idiopathic short stature, BMI body mass index, TAC total antioxidant capacity, TOS total oxidant status, OSI oxidative stress index
*P value < 0.05
**P value < 0.001