Table 2.

Cognitive Performance, Mean Score of Daytime Sleepiness (ESS) and Sleep Quality (PSQI) in BD Patients

MATRICS Cognitive Consensus Battery (MCCB)	Mean T-score	SD
Processing Speed (n=112)	41.1	11.6
Attention and Vigilance (n=110)	40.1	11.7
Working Memory (n=113)	38.4	12.9
Verbal Learning (n=55)	39.1	7.7
Visual Learning (n=112)	39.9	12.9
Reasoning & Problem Solving (n=112)	42.0	9.4
Social Cognition (n=113)	41.3	11.8

	Mean Z-score	SD
Epworth Sleepiness Scale (ESS; Daytime Sleepiness; n=116)	−.19	1.19
Pittsburgh Sleep Quality Index (PSQI)
Sleep Disturbance (n=113)	−1.7	1.8
Day Dysfunction (n=112)	−2.0	1.7
Sleep Quality Total Score (n=114)	−3.8	2.6

A negative mean score on both ESS and PSQI corresponds to a more severe sleep disruption