TABLE 1.

Descriptive data of the ADHD and HC groups.

	ADHD (n = 17)	HC (n = 17)	P
Sex, n (%)			0.671
Male	14(82.3%)	13(76.5%)
Female	3(15%)	4(23.5%)
Age, years; median (25th and 75th percentiles)	8(7,10)	8(7,9.5)	0.701
BMI, mean (SD)	16.1 (1.2)	15.9 (1.1)	0.652
Constipation, n(%)	12(70.5%)	2(11.7%)	<0.05
ADHD symptom severity, mean (SD)
Total CPRS score	10.3 (4.2)	2.2 (0.63)	<0.05
Conduct problems	3.1 (1.46)	0.16 (0.27)	<0.05
Impulsive–hyperactivity	1.5 (0.59)	0.16 (0.22)	<0.05
Hyperactivity	3.4 (0.65)	0.05 (0.21)	<0.05
Learning problems	1.9 (0.57)	0.21 (0.34)	<0.05
Psychosomatic	0.56 (0.34)	0.53 (0.41)	0.452
Anxiety	0.42 (0.32)	0.51 (0.35)	0.523

ADHD, attention-deficit/hyperactivity disorder; BMI, body mass index; CPRS, Conners Parent Rating Scales; HC, healthy control.