Table 4 Adjusted means and mean difference between pregabalin and placebo, and gabapentin and placebo, for seizure-free days over the last 28 days

Pregabalin

150 mg

5.40

0.35

2.29

1.87, 2.72

300 mg

5.71

0.36

2.61

2.12, 3.10

450 mg^a

5.90

0.36

2.80

2.28, 3.32

600 mg

6.03

0.36

2.93

2.38, 3.47

Placebo

3.10

0.39

-

-

Gabapentin

900 mg

4.42

0.36

1.32

0.82, 1.82

1200 mg

4.48

0.37

1.37

0.85, 1.89

1800 mg

4.56

0.37

1.45

0.90, 2.00

2400 mg^a

4.61

0.38

1.51

0.94, 2.08

Placebo

3.10

0.38

-

-