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Table 1 Demographic and clinical data on groups used in interictal analysis (comparing recordings in interictal migraineurs and controls) and subgroups used in paired analysis

From: Fluctuations of sensorimotor processing in migraine: a controlled longitudinal study of beta event related desynchronization

   Migraineurs for paired analysis2
Interictal recordings1 Preictal Ictal Postictal
(n = 33) (n = 11) (n = 13) (n = 9)
Women/men 30/3 11/0 12/1 7/2
MwoA/MA 27/6 9/2 10/3 8/1
Age (years) 36.5 (12.7) 37.3 (12.9) 37.5 (12.5) 41.3 (12.8)
Headache history (years) 19.3 (11.0) 20.5 (11.7) 20.5 (9.9) 18.1 (13.1)
Headache days last 3 months 6.2 (4.0) 6.7 (4.8) 7.2 (4.7) 4.2 (2.3)
Headache intensity (0–4) 2.4 (0.7) 2.4 (0.7) 2.3 (0.6) 2.2 (1.0)
Headache duration (h) 17.8 (22.0) 15.9 (20.2) 14.9 (17.3) 18.4 (30.5)
Photophobia (0–2)3 1.4 (0.7) 1.4 (0.7) 1.0 (0.8) 1.2 (0.7)
Phonophobia (0–2)3 1.1 (0.8) 1.2 (0.7) 0.8 (0.8) 1.2 (0.8)
  1. MA = migraine with aura, MwoA = migraine without aura. Mean (SD) or numbers
  2. 1Migraineurs with at least one interictal EEG recording
  3. 2Subgroups with both an interictal EEG recording (> 36 h from attack) and a preictal (< 36 h before attack), ictal or postictal (< 36 h after attack) EEG recording
  4. 3Numerical definition: 0 – none, 1 – some, 2 – substantial
  5. The control group consisted of 27 women and 3 men (n = 30) with a mean age of 39.7 (11.5)
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