Using eye movements in the dot-probe paradigm to investigate attention bias in illness anxiety disorder

Table 1 Demographic characteristics and clinical symptoms of the illness anxiety disorder and healthy control groups

Item	Patient group: IAD group, n = 30	Control group: HC group, n = 30	t/χ2	P value
Age in yr	30.03 ± 8.73	30.70 ± 8.61	−0.298	0.767
Sex, male/female	19/11	14/16	1.684	0.194
Educational background
Junior high school	5	5
Senior vocational/high school	4	4
Junior college/university	20	20
Master’s degree or higher education	1	1
IAS	47.53 ± 16.44	27.43 ± 13.07	5.240c	< 0.001
WI	7.60 ± 3.83	3.13 ± 1.98	5.677c	< 0.001
BAI	38.17 ± 12.09	24.57 ± 4.33	5.799c	< 0.001
BDI	18.10 ± 9.65	6.13 ± 6.71	5.577c	< 0.001

^cP < 0.001.

BAI: Beck anxiety inventory; BDI: Beck depression inventory; HC: Healthy control; IAD: Illness anxiety disorder; IAS: Illness attitudes scale; WI: Whiteley index.