Table 1.

Demographic data of studied subjects

	Cases ( n  =  80 )	Control ( n  =  40 )	P
Male/female #	34/46	24/16	> 0.05
Age (years)	11.4 ± 2.5	10.8 ± 2.3	> 0.05
BMI (kg/m 2 )	23.6 ± 5.7	21.8 ± 4.7	> 0.05
Disease duration (months)	17 (3–52)	-	-

BMI, body mass index.

Data are presented as mean ± SD or median (min-max).

Student t-test was used for comparisons. P value < 0.05 indicates a significant difference.

# Chi-square test.