Table 6 Instrument based diagnostics
All patients (N = 989) | Females (N = 545; 55%) | Males (N = 444; 45%) | Statistics | |
|---|---|---|---|---|
EEG Alterations | N = 951 (96%) | N = 519 (95%) | N = 432 (97%) | |
Continuous generalized slow activity | 34 (4%) | 18 (3%) | 16 (4%) | Wald = 0.105 p = 0.746 |
Continuous regional slow activity | 6 (0.6%) | 1 (0.2%) | 5 (1%) | Wald = 2.748 p = 0.097 |
Intermittent generalized slow activity | 161 (17%) | 95 (18%) | 66 (15%) | Wald = 1.789 p = 0.181 |
Intermittent regional slow activity | 52 (5%) | 31 (6%) | 21 (5%) | Wald = 0.462 p = 0.497 |
Epileptic pattern | 29 (3%) | 15 (3%) | 14 (3%) | Wald = 0.003 p = 0.958 |
EEG overall alterations | 240 / 951 (25%) | 136 / 519 (26%) | 104 / 432 (24%) | Wald = 0.641 p = 0.423 |
MRI Alterations | N = 894 (90%) | N = 498 (91%) | N = 396 (89%) | |
White/Grey matter changes overalla | 460 / 894 (51%) | 269 / 498 (54%) | 191 / 396 (48%) | Wald = 0.906 p = 0.341 |
Non-specific white matter changes | 374 (42%) | 212 (43%) | 162 (41%) | Wald = 0.042 p = 0.837 |
Grey matter changes of amygdalae, hippocampi, other limbic structures | 12 (1%) | 8 (2%) | 4 (1%) | Wald = 0.400 p = 0.527 |
Possible/probable/ definite (post-) inflammatory changes | 77 (9%) | 52 (10%) | 25 (6%) | Wald = 4.360 p = 0.037 |
Atrophic changesb | 107 (12%) | 52 (10%) | 55 (14%) | Wald = 3.702 p = 0.054 |
Macroangiopathic vascular alterations (post-ischemic changes) | 33 (4%) | 17 (3%) | 16 (4%) | Wald = 0.306 p = 0.580 |
Microhemorrhage | 16 (2%) | 10 (2%) | 6 (2%) | Wald = 0.244 p = 0.621 |
Cysts | 118 (13%) | 67 (13%) | 51 (13%) | Wald = 0.213 p = 0.644 |
Tumors | 13 (1%) | 9 (2%) | 4 (1%) | Wald = 0.834 p = 0.361 |
Anatomical variants and other changes | 208 (23%) | 118 (24%) | 90 (23%) | Wald = 0.156 p = 0.693 |
Overall MRI changes | 639 / 894 (71%) | 366 / 498 (73%) | 273 / 396 (69%) | Wald = 0.531 p = 0.466 |