Clinical characteristics
| Tardive (n=24) | Idiopathic (n=92) | |
| Type of OMD (n (%): | ||
| Jaw closure | 10 (41.7) | 47 (51.1) |
| Jaw opening | 6 (25.0) | 21 (22.8) |
| Mixed | 8 (33.3) | 24 (26.1) |
| Orofacial-lingual stereotypies (n (%): | ||
| Total number of patients2-150 | 18 (75.0) | 29 (31.5) |
| Facial grimacing2-150 | 7 (29.2) | 7 (7.6) |
| Lip pursing2-150 | 9 (37.5) | 16 (17.4) |
| Lip sucking | 1 (4.2) | 1 (1.1) |
| Lip smacking2-150 | 3 (12.5) | 0 |
| Chewing | 1 (4.2) | 0 |
| Tongue protrusion2-150 | 9 (37.5) | 7 (7.6) |
| Tongue dyskinesias (rotation, roving, etc) | 3 (12.5) | 4 (4.3) |
| Stereotypies (limb)2-150 | 5 (16.7) | 0 |
| Akathisia | 1 (4.2) | 0 |
| Respiratory dyskinesia2-150 | 3 (8.3) | 0 |
↵2-150 p<0.05.