TABLE 2.

Descriptive statistics of categorical variables.

Indicators	Abs.		%
	ID with ASD (n = 34)	ID without ASD (n = 87)	ID with ASD (n = 34)	ID without ASD (n = 87)	χ2	P
Sex male/female	27/7	66/21	79.4/20.6%	75.9/23.1%	0.173	p = 0.677
Orphancy	1	26	2.9%	29.9%	10.238	p = 0.001
The patients are given a disability group	16	16	47.16%	18.39%	10.329	p = 0.001

ID with ASD—a group of patients with intellectual disability and autism spectrum disorders; ID without ASD—a group of patients with intellectual disability without autism spectrum disorders. The bold values indicate values with p = 0.001.