Table 1 Characteristics of the overall neurologic clinical population.

From: Population-based spectral characteristics of normal interictal scalp EEG inform diagnosis and treatment planning in focal epilepsy

Data Property

Summary Statistics

Routine EEG recordings

Total recordings: 13,652

Unique patients: 12,134

Age

Range: 18-103.7

Mean: 50.9 (± 19.4)

Age groups:

18–30: 2,639

30–50: 3,785

50–70: 4,563

> 70: 2,665

Sex

Female = 6,464 (53.3%)

EEG Grade (based on expert visual review)

Normal: 6,242 (45.7%)

Dysrhythmia 1: 3,395 (24.9%)

Dysrhythmia 2: 1,800 (13.2%)

Dysrhythmia 3: 2,215 (16.2%)

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