| Normal subjects compared with anxiety disorder patients | Contrasting subgroups of patients with anxiety disorders | |||||||
| Normal subjects N = 29 | Anxiety disorder patients N = 75 | PH+ N = 19 | PH− N = 6 | NPAH+ N = 28 | NPAH− N = 22 | SMD-1⩾6 N = 30 | SMD-1<6 N = 43 | |
| N (%) | N (%) | N (%) | n (%) | n (%) | n (%) | n (%) | n (%) | |
| Rotational test asymmetry | 7 (25) | 26 (36) | 5 (28) | 1 (17) | 13 (48) | 7 (32) | 12 (41) | 14 (33) |
| Caloric test, unilateral reduced response | 4 (14) | 19 (27) | 6 (33) | 3 (60) | 9 (33) | 1 (5) | 7 (25) | 11 (28) |
| Dynamic posturography (any of conditions I–VI abnormal) | 3 (11) | 22 (31) | 8 (42) | 0 | 7 (28) | 7 (32) | 14 (52) | 8 (20) |
NPAH+, non-panic anxiety disorder with fear of heights; NPAH−, non-panic anxiety disorder without fear of heights; PH+, panic disorder with fear of heights; PH−, panic disorder without fear of heights