Table 5.

Effects of lacosamide on the different subitems of Pittsburgh sleep quality index.

	Score at t0  (mean ± S.D.)	Score at t1  (mean ± S.D.)	P
C1 subjective sleep quality	0,9 ± 0,6	0,7 ± 0,5	0.5
C2 sleep latency	0,4 ± 0,5	0,3 ± 0,5	0.68
C3 sleep duration	0,8 ± 0,4	0,8 ± 0,4	1
C4 sleep efficiency	0,6 ± 0,5	0,5 ± 0,5	0.9
C5 sleep disturbances	1,2 ± 0,8	0,9 ± 0,7	0.34
C6 use of sleeping medication	0,2 ± 0,4	0,3 ± 0,5	0.59
C7 daytime dysfunction	0,3 ± 0,5	0,2 ± 0,4	0.68

Statistical analysis was performed by means of Wilcoxon signed-rank nonparametric test.