Incidence of tic disorder and OCD cases by ICD version
| Tic disorders | OCD | |||
|---|---|---|---|---|
| ICD version | Frequency (%) | Cumulative frequency (%) | Frequency (%) | Cumulative frequency (%) |
| ICD-8 | 325 (5) | 325 (5) | 3230 (13) | 3230 (13) |
| ICD-9 | 310 (4) | 635 (9) | 1688 (7) | 4918 (20) |
| ICD-10 | 6651 (91) | 7286 (100) | 19 839 (80) | 24 757 (100) |
ICD, International Classification of Diseases; OCD, obsessive-compulsive disorder.