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Table 1 Sociodemographic and clinical variables at baseline

From: Children with ADHD and EEG abnormalities at baseline assessment, risk of epileptic seizures and maintenance on methylphenidate three years later

Variables

N = 517

EEG normal

n = 244, (47.2%)

EEG- ab

n = 273 (52.8%)

EEG non-epi-ab

n = 264 (51.1%)

EEG-epi-ab

n = 39 (7.5%)

EEG without EEG-epi-ab

N = 478 (92.5%)

Age, mean

9.4 + 2.5

9.5 + 2.5

9,3 + 2.4

9,2 + 2.3

9.7 + 2.7

9.3 ± 2.4

Gender (m)

82%

86.1%

78.3%

82.8%

71.8%

83.1%

ADHD-I (n, %)

68 13.2%

27 11.1%

41 15%

39 14.9%

16 41%

50 10.5%

Epilepsy

SZ, last year

14

3

1 (0.4%)

0

13 (4.8%)

3

9 (3.4%)

3

12 (30.8)

3

2 (4.2%)

0

MPH,

at baseline

481

(93%)

225

(92.2%)

256

(93.8%)

246

(93.2%)

36

(92.3%)

443

(92.7%)

MPH,

positive response

388

(80.7%)

178

(79.1%)

210

(82%)

204

(82.9%)

30

83.3

354

(79.9%)

  1. ADHD-I = ADHD predominantly inattentive type; EEG-ab = EEG abnormalities; EEG-epi-ab = EEG epileptiform abnormalities; EEG-non-epi-ab = EEG non-epileptiform abnormalities; MPH = methylphenidate; SZ = epileptic seizures