Table 1. Comparison of the independent-walking and non-independent-walking groups of three different age groups.

Three groups by age	Problematic behaviors	Independent-walking	Non-independent-walking
		Median (Min–Max)	Median (Min–Max)
Infants	Stereotypy	0.0 (0.0–2.0)	1.0 (0.0–17.0)
	Lethargy	2.0 (0.0–20.0)	7.0 (0.0–33.0)
	Irritability	5.0 (0.0–27.0)	10.0 (0.0–29.0)
	Hyperactivity	7.5 (0.0–27.0)	10.0 (0.0–18.0)
	Inappropriate speech	0.0 (0.0–4.0)	0.0 (0.0–9.0)
Schoolchildren	Stereotypy	0.0 (0.0–16.0)	2.0 (0.0–15.0)
	Lethargy	5.0 (0.0–29.0)	7.5 (0.0–22.0)
	Irritability	8.0 (0.0–40.0)	5.5 (0.0–27.0)
	Hyperactivity	11.0 (0.0–40.0)	5.5 (1.0–27.0)
	Inappropriate speech	1.0 (0.0–10.0)	0.0 (0.0–4.0)
Adolescents	Stereotypy	0.0 (0.0–20.0)	1.0 (0.0–21.0)
	Lethargy	7.0 (0.0–22.0)	5.0 (0.0–24.0)
	Irritability	3.0 (0.0–32.0)	9.0 (1.0–36.0)
	Hyperactivity	10.0 (0.0–32.0)	8.0 (1.0–35.0)
	Inappropriate speech	0.0 (0.0–9.0)	1.0 (0.0–8.0)