Table 1:

Demographic information and clinical scores

	Control	ADHD	F	Effect Size (95% CI)
n	40	39
Age (years)	28.67 (4.97)	29.71 (5.69)	0.72	0.20 (−1.40 – 3.48)
IQ	116.50 (11.33)	111.44 (14.37)	3.03	0.40 (−10.85 – 0.73)
Sex (male:female)	18:22	20:19	X²=0.31
Education (years)	17.18 (2.67)	15.87 (2.41)	5.18^*	0.51 (−2.44 – −0.16)
Sleepiness	1.63 (0.67)	1.92 (0.62)	4.20^*	0.46 (0.009–.59)
Inattention Symptoms
ACDS	0.13 (0.52)	5.54 (2.65)	156.17^**	2.90 (4.55–6.28)
BAARS (self-report)	0.10 (0.38)	5.26 (2.22)	209.43^**	3.30 (4.45–5.87)
BAARS (informant report)	0.51 (1.43)	4.05 (2.78)	49.54^**	1.64 (2.54 – 4.54)
Hyperactivity/impulsivity Symptoms
ACDS	0.05 (0.32)	4.16 (2.70)	88.95^**	2.19 (3.24 – 4.98)
BAARS (self-report)	0.28 (0.51)	4.15 (2.37)	102.56^**	2.31 (3.12 – 4.64)
BAARS (informant report)	0.51 (1.48)	2.84 (2.56)	21.81^**	1.09 (1.27 – 3.17)
Other Psychiatric Disorders
Major Depressive Disorder (met criteria:did not meet criteria)	8:32	22:17	X²=11.11^**
Generalized Anxiety Disorder (met criteria:did not meet criteria)	1:39	7:32	X²=5.18^*
Medication Use
Prescribed Stimulant Medication (yes:no)	0:40	21:18	X²=29.34^**
Prescribed SSRI/SNRI (yes:no)	0:40	2:37	X²=2.11

p < .05;

^**

p < .001

ACDS = Adult ADHD Clinical Diagnostic Scale; BAARS = Barkley Adult ADHD Rating Scale; SSRI = selective serotonin reuptake inhibitor; SNRI = serotonin norepinephrine reuptake inhibitor

All symptom counts are for current symptoms

Sleepiness measured from the Stanford Sleepiness Scale and ranged from 1 (wide awake) to 4 (somewhat foggy)