Table 1 Clinical characteristics of the subjects

Age range

28 to 69 months; 54.12±9.08

Age at onset of OCD symptoms

18 to 60 months; 35.64±13.42

Types of OCD symptoms

Cleanliness

n=19; 76%

Ordering/symmetry

n=16; 64%

Shape/color of the clothes

n=15; 60%

Smelling people or things or his/her own body parts

n=14; 56%

Hoarding

n=12; 48%

Asking for reassurance

n=12; 48%

Frequent checking

n=8 ; 32%

Shape of hairs

n=8 ; 32%

Ritualistic behaviors

n=7 ; 28%

Fear of contamination with germs

n=5 ; 20%

Preoccupation with colors of things

n=4 ; 16%

Touching people or things

n=3 ; 12%

Fear of doing “bad things”

n=2 ; 8%

Religious obsessions

n=2 ; 8%

Sexual obsessions

n=1 ; 4%

Fear of getting harmed, poisoned or sick

n=1 ; 4%

Course of OCD symptoms

Continue-saw tooth

n=12; 48%

Continue-stable

n=6 ; 24%

Continue with symptom free period

n=4 ; 16%

Episodic

n=3 ; 12%

Comorbid DSM-IV Diagnoses

ADHD

n=15; 60%

SAD

n=13; 52%

ODD

n=12; 48%

SP

n=7 ; 28%

Tics

n=6 ; 24%

Pica

n=4 ; 16%

SoP

n=3 ; 12%

Nocturnal enuresis

n=3 ; 12%

Encopresis

n=2 ; 8%

GAD

n=2 ; 8%

Stuttering

n=2 ; 8%

Delay in expressive language

n=2 ; 8%

Trichotillomania

n=2 ; 8%

Articulation disorder

n=1 ; 4%

DAD

n=1 ; 4%

CD

n=1 ; 4%

GID

n=1 ; 4%

Lifetime family history of OCD

Present in both parents

n=5 ; 20%

Present only in the mothers

n=9 ; 36%

Present only in the fathers

n=3 ; 12%

Absent in both parents

n=6 ; 24%

Subsendromal OCD in mothers with data lacking for fathers

n=2 ; 8%