Table 1.

Demographic and clinical sample characteristics.

Characteristics	OCD	HC
	n	n
	Mean ± SD	Mean ± SD
Sample size	66	66
Female	46 (69.7%)	46 (69.7%)
Age (years)	32.4 ± 10.5	31.6 ± 10.3‡
Disease duration	16.0 ± 10.8
Y-BOCS total	21.0 ± 6.2
Obsession	11.0 ± 3.6
Compulsions	9.9 ± 3.9
OCI-R total	25.4 ± 10.0
Hoarding	2.3 ± 2.6
Checking	5.5 ± 3.6
Ordering	3.9 ± 3.8
Neutralizing	2.2 ± 2.9
Washing	4.8 ± 3.9
Obsessing	6.8 ± 3.6
BDI (S1)	18.0 ± 11.5
HAM-D (S2)	12.6 ± 4.9
Comorbidities	30 (45.5%)
Depression	23
Anxiety disorder	10
Personality disorder	4
Eating disorder	2
ADHD	2
Medication	48 (72.7%)
SSRI	35
SSRNI	6
Neuroleptic	5
TCA	3
Methylphenidate	1
Benzodiazepine	1
NDRI	1
NaSSA	1

Note that multiple comorbid diagnoses as well as different medication types can be present in a single patient; abbreviations for medication: NaSSA, noradrenergic and specific serotonergic antidepressant; NDRI, norepinephrine-dopamine reuptake inhibitor; SSNRI, selective serotonin-norepinephrine reuptake inhibitor; SSRI, selective serotonin reuptake inhibitor; TCA, tricyclic antidepressant.

^‡Two-sample t-test (t(130) = 0.442, p = 0.659).