Table 2.

Demographics and differences of the children with/without any anxiety disorders

Demographics	Children with any anxiety disorders		Children without anxiety disorders		t−X2	p value
	%/Mean	n/ ± SD	%/Mean	n/ ± SD
Age
Children’s age	8.71	± 1.13	8.70	± 5.34	0.42	0.675
Mother’s age	34.96	± 5.09	35.31	± 5.43	− 1.08	0.281
Father’s age	38.99	± 6.07	39.44	± 6.23	− 1.22	0.216
Gender
Female	47.5%	145	48.3%	2670	0.07	0.422
Male	52.5%	160	51.7%	2859
School grade of children
First 3 classes	69.5%	210	68.7%	3790	0.88	0.410
Third, fourth and fifth classes	30.5%	92	31.3%	1725
Mother’s education level
Middle school or lesser	67.5%	195	60.9%	2998	5.1	0.014
High school or higher	32.5%	94	39.1%	1925
Mother’s employment status
Employed	17.9%	54	9.5%	1013	0.06	0.437
Unemployed	82.1%	247	81.5%	4459
Mother’s history of physical disease
Has history of physical disease	17.5%	53	13.8%	762	3.2	0.048
Has not history of physical disease	82.5%	250	86.2%	4742
Mother’s history of psychiatric disease
Has history of  psychiatric disease	17.3%	52	10.3%	568	14.5	0.000
Has not history of psychiatric disease	82.7%	249	89.7%	4934
Father’s education level
Middle school or lesser	72.5%	216	53.3%	2912	41.9	0.000
High school or higher	27.5%	82	46.7%	2551
Father’s employment status
Employed	96.6%	287	97.3%	5219	0.52	0.282
Unemployed	3.4%	10	2.7%	143
Father’s history of physical disease
Has history of physical disease	12.4%	37	3.8%	206	52.3	0.000
Has not history of physical disease	87.6%	262	96.2%	5276
Father’s history of psychiatric disease
Has history of psychiatric disease	14%	42	11.4%	624	2.0	0.097
Has not history of psychiatric disease	86%	257	88.6%	4858

p-value (bold) is less than 0.05 (typically ≤ 0.05) is statistically significant