Clinical comparison of tic and chorea subgroups. Psychiatric diagnoses according to ICD-10 criteria
| Characteristic | Tic (n = 16) | Chorea (n = 20) | p value |
|---|---|---|---|
| Mean age of presentation (range) | 6.75 (2–13) | 7.85 (1.5–13) | NS |
| Proportion male | 69% | 35% | 0.04 |
| Mean length of follow up (range) | 3.84 (0.2–13) | 1.1 (0.2–17) | 0.001 |
| Continuing movement disorder | 94% | 55% | 0.01 |
| Any psychiatric disorder | 69% | 50% | NS |
| Emotional disorder | 50% | 40% | NS |
| Obsessive-compulsive disorder | 50% | 10% | 0.02 |
| Generalised anxiety | 19% | 25% | NS |
| Major depression | 12.5% | 20% | NS |
| Conduct disorders (all types) | 25% | 20% | NS |
| Hyperkinetic disorders (all types) | 19% | 15% | NS |