Table 1.

Demographic and clinical characteristics of the total sample (healthy controls and participants with different anxiety disorders, n = 1602)

	Healthy controls	SAD	PDA	PD	GAD	Multiple AD	p a
	n = 647	n = 191	n = 90	n = 84	n = 110	n = 480
Sociodemographics
Age (mean, SD)	41.1 (14.6)	37.3 (11.9)	40.1 (12.5)	38.3 (11.1)	37.4 (12.0)	40.8 (11.7)	.001
Sex (% female)	61.7	64.9	74.4	59.5	69.1	68.5	.05
Education (mean, SD)	12.8 (3.2)	12.6 (3.2)	12.1 (3.4)	12.4 (3.1)	12.4 (3.1)	11.3 (3.3)	<.001
Partner status (% yes)	75.0	56.5	70.0	73.8	70.0	63.8	<.001
Clinical psychiatric characteristics
Number of somatic illnesses (mean, SD)	0.7 (1.0)	0.8 (0.9)	0.9 (1.0)	0.7 (0.8)	0.7 (0.9)	1.1 (1.2)	<.001
Comorbid depressive disorder (%)	0	41.9	38.7	40.5	62.7	72.5	<.001
Psychiatric course trajectories (%)							<.001
Remission	-	72.3	87.1	81.2	91.1	51.1
Recurrence	-	10.8	4.3	14.1	7.6	13.8
Chronic course	-	16.9	8.6	4.7	1.3	35.1
Psychiatric status after 4 years (%)							<.001
No anxiety disorder	-	64.9	68.6	65.6	79.7	51.1
Social anxiety disorder	-	20.9	2.9	3.1	7.6	16.8
Panic disorder with agoraphobia	-	0	8.6	4.7	0	6.3
Panic disorder without agoraphobia	-	2.0	8.6	12.5	3.8	6.3
Generalized anxiety disorder	-	4.1	5.7	1.6	8.9	7.2
Multiple anxiety disorder	-	8.1	5.7	12.5	0	12.3
Symptom dimensions
Anxiety arousal (BAI, mean, SD)	4.1 (4.9)	13.9 (9.1)	19.1 (11.6)	14.2 (8.9)	14.6 (8.2)	23.1 (11.1)	<.001
Avoidance behaviour (Fear Q, mean, SD)	12.1 (12.2)	34.4 (18.8)	32.1 (19.0)	22.8 (18.1)	25.0 (16.3)	43.7 (20.6)	<.001

^a p-value based on chi-square statistics for categorical variables and analyses of variances for continuous variables