TABLE 1.

Sample Demographics and Clinical Features

	Diagnostic			Statistical
(a) SAMPLE 1	SAD	CON	PD	SAD vs	PD vs CON	SAD vs
	N = 16	N = 20	N=16
Gender [N(%), Female]	13 (81)	9 (45)	13	x2 = 4.9*	x2 = 3.8+	x2 = 0.11
Age [mean years, std]	34.1	31.4 (7.8)	31.8 (10)	t = 1.1	t = .41	t = .75
Education [completed college, N(%)]	11 (69)	14 (70)	9	x2 = .007	x2 = .72	x2 = .53
Age at onset [mean, std]	11.0	n/a	18.4 (3.4)			t =
Trait Anxiety [mean, std]	35.7	27 (6.1)	39.4 (7.9)	t = 2.3*	t= 4.9****	t = .99
State Anxiety [mean, std]	39 (11.9)	26 (4.1)	35.5 (10)	t = 4.0****	t = 3.5***	t = .88
Lifetime Comorbid Diagnoses [N,%]
MDD	5 (31)	0	3			x2 = .83
GAD	2 (12)	0	2			x2 = .004
SP	4 (25)	0	5			x2 = 0.08
OCD	1 (6)	0	2			x2 = 0.1
DUD	1 (6)	0	4			x2 = 1.9
AUD	0	0	4			x2 = .3
Lifetime Psych. Medication Use [N,%]	3 (20)	0	9			x2 = 3.7+
(b) SAMPLE 2	SAD	CON	PD	SAD vs
	N = 17	N = 17	n/a
Gender [N(%), Female]	11 (64)	10 (59)		x2 = 0.1
Age [mean years, std]	29.1	31.3		t = .66
Education [completed college, N(%)]	12 (71)	10 (60)		x2 = .52
State Anxiety [mean, std]	44.7	24.4 (7.1)		t = 6.9****
Liebowitz Social Anxiety Scale [mean,	81.4	8.1 [5.4]		t =
Lifetime Comorbid Diagnoses [N,%]
MDD	6 (35)	0
GAD	3 (18)	0
AUD	2 (12)	0
Lifetime Psych. Medication Use [N,%]	6 (35)	2 (12)
(C ): COMBINED SAMPLE	SAD	CON	PD	Sample	Group	Sample x
	N = 33	N = 37	n/a	(1 vs 2)	(SAD vs
Gender [N(%), Female]	24 (73)	19 (51)		x2 = 0.03	x2 = 3.4+	x2 = 1.8
Age [mean years, std]	31.5	31.4 (9.1)		t = 1.3	t = .01	F = 1.5
Education [completed college, N(%)]	23 (70)	24 (65)		x2 = 0.3	x2 = 0.18	x2 = 0.01
State Anxiety [mean, std]	42.0	25.6 (5.7)		t = 1.5	t = 64.9****	F = 2.8

⁺p .1;

^*p ≤ .05;

^**p ≤ .01;

^***p ≤ .005;

^****p ≤.001

Abbreviations:

AUD: Alcohol Use Disorder (abuse or dependence); DUD: Drug Use Disorder (abuse or dependence); GAD: Generalized Anxiety Disorder; MDD = Major Depressive Disorder; OCD: Obsessive Compulsive Disorder; SP: Specific phobia.

Medication frequencies only include those prescribed for a psychiatric condition.