Table 1 Demographics and clinical characteristics of the JME cohort.

From: Sex-specific disease modifiers in juvenile myoclonic epilepsy

 

Male

Female

Total cohort

N

278 (36%)

487 (64%)

765 (100%)

Age (median, range) years

22 (9–53)

23 (6–53)

23 (6–53)

Age at myoclonic seizure onset (mean ± SD) years

14.7 ± 3.4

14.4 ± 3.2

14.5 ± 3.2

Absence seizures

98 (38%)

213 (45%)

311 (42%)

GTCS

241 (90%)

415 (88%)

656 (89%)

Self-reported triggered seizures

119 (50%)*

240 (59%)*

359 (56%)

Seizures triggered by stress-related precipitants

82 (34%)

168 (41%)

250 (39%)

Percentage of seizures triggered (median)

70%

63%

70%

Photosensitivity

78 (37%)**

206 (55%)**

284 (49%)

(Any) Response to photic stimulation during EEG

69 (29%)**

186 (44%)**

255 (38%)

  Photoparoxysmal response

58 (28%)**

157 (42%)**

215 (37%)

  Seizures triggered by photic stimulation

28 (12%)*

82 (20%)*

110 (17%)

  Exclusively myoclonic seizures

9 (32%)

35 (43%)

44 (40%)

  Myoclonic and other seizure types

6 (21%)

6 (7%)

12 (11%)

  Other seizure types

3 (11%)

9 (11%)

12 (11%)

Unknown seizure type

10 (36%)

32 (39%)

42 (38%)

Seizure-free

127 (71%)

215 (66%)

342 (68%)

Drug-resistant

52 (29%)

113 (35%)

165 (33%)

Unknown/missing seizure control

99

159

258

History of valproate use

183 (66%)**

222 (46%)**

405 (53%)

  1. For percentages, denominators are adjusted for missing data.
  2. *Sex difference, p < 0.05.
  3. **Sex difference, p < 0.001.