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Table 4 Cognitive measures

From: Sleep architecture and cognitive changes in olanzapine-treated patients with depression: A double blind randomized placebo controlled trial

Cognitive measures Placebo Olanzapine
Baseline Day 2-4 Day 28-31 Baseline Day 2-4 Day 28-31 ANOVA
Mean ± SD Mean ± SD
SWM        
 Between errors 23 ± 26 22 ± 23 12 ± 15 34 ± 24 31 ± 19 21 ± 21 p = .778
 Strategy score 29 ± 8.4 29 ± 7.6 28 ± 7.8 31 ± 8.0 30 ± 7.0 31 ± 6.9 p = .562
RTI        
 Reaction time 410 ± 80.6 395 ± 43.3 405 ± 52 410 ± 110 380 ± 92.8 388 ± 111 p = .333
 Movement time 579 ± 110 567 ± 104 539 ± 61 542 ± 132 563 ± 136 530 ± 107 p = .395
SSP 5.8 ± 1.4 5.7 ± 1.6 5.6 ± 1.6 5.4 ± 1.4 5.4 ± 1.2 5.7 ± 1.4 p = .296
  1. The mean ± standard deviation (SD) of cognitive measures for both olanzapine and placebo treated group.SWM = Spatial Working Memory task, RTI = Reaction Time task, SSP = Spatial Span task. P value reported for the interaction (time by treatment) of a two-way repeated measures ANOVA.