Table 3. Correlations of Cluster Scores with Diagnoses, Age, Medication Use and Scores on Clinical Ratings for Youth and Adults.
| Cluster 1 | Cluster 2 | Cluster 3 | Cluster 4 | |||||
|---|---|---|---|---|---|---|---|---|
| Impulse Control & Complex Phonic Tics | Complex Motor Tics | Simple Head Moto/Vocal Tics | Primarily Simple Motor Tics | |||||
| Clinical | Adults | Adults | Adults | Adults | ||||
| Characteristics | Youth | Youth | Youth | Youth | ||||
| Age | 0.11 | −0.06 | −0.03 | −0.02 | 0.01 | −0.12 | 0.03 | 0.04 |
| On Medication For | ||||||||
| Tics | 0.23* | 0.00 | −0.04 | −0.25 | 0.07 | −0.11 | 0.16 | 0.12 |
| YGTSS Impairment | 0.17 | 0.19 | −0.18 | −0.05 | 0.07 | 0.03 | 0.19 | 0.07 |
| Premonitory Urge | 0.16 | 0.30* | −0.01 | 0.18 | 0.07 | 0.09 | 0.13 | 0.14 |
| Total Score | ||||||||
| Y-BOCS/CY- | 0.11 | 0.10 | 0.11 | 0.07 | 0.11 | 0.10 | 0.19 | 0.25 |
| BOCS Total Score | ||||||||
| ADHD-RS Total Score | 0.15 | 0.03 | 0.07 | −0.01 | 0.14 | 0.09 | 0.07 | 0.28* |
*
Corrected for Multiple Comparison: Significance set at p < 0.008
Note: Non-OCD Anxiety Disorder included Generalized Anxiety Disorder, Social Phobia, Panic Disorder and Separation Anxiety Disorder.
YGTSS = Yale Global Tic Severity Scale; Y-BOCS/CY-BOCS = (Children's) Yale-Brown Obsessive Compulsive Scale; ADHD-RS = Attention Deficit Hyperactivity Disorder- Rating Scale