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Table 5 39 cases with and 39 controls without EEG-epi-ab at 3 years follow-up

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

 

39 cases with EEG-epi-ab

39 controls without EEG-epi-ab

P

 

With

non-epi-ab

Without

non-epi-ab

 

With

non-epi-ab

Without

non-epi-ab

N,

(%)

39

(100%)

30

(76.9%)

9

(23.1%)

39

19

(48.7%)

20

(51.3%)

0.1

Age, mean + SD

9.7 ± 2.7

9.6 ± 2.8

10 ± 2.6

9.7 ± 2.7

10.±2.6

9.4 ± 2.7

 

Gender, female (%)

11 (28%)

9 (30%)

2 (22.2%)

11 (28%)

4 (21.1%)

7 (35%)

 

ADHD-I (%)

16 (41%)

14

2

6 (15.4%)

3

3

P < 0.01*

Previous epilepsy

12

8

4

0

0

0

P < 0.001

MPH, at baseline (%)

36 (92.3%)

28

8

37 (94.9%)

17

20

0.65

MPH, positive response (%)

30 (83.3%)

24

6

33 (89,2%)

15

18

0.47

MPH, maintenance at 3 years (%)

26 (86.7%)

22 (91.7%)

4 (66.7%)

27 (81.8%)

12 (70.6%)

15 (75%)

0.49

0.11

Control EEG

39

20

19

    

 EEG-epi-ab

11 (28.2%)

7

(35%)

4 (21.1%)

    

SZ occurrence

(any SZ within the past 3 years)

3

3

0

0

0

0

 
  1. ADHD-I, ADHD predominantly inattentive type; EEG-epi-ab, EEG epileptiform abnormalities; EEG-non-epi-ab, EEG non-epileptiform abnormalities; MPH, methylphenidate; SZ, epileptic seizures
  2. The significant difference is between the group with EEG epi-ab and the group without EEG-epi-ab