Table 4.

Baseline to follow-up associations between changes in sleep and changes in cognition.

	Delayed Recall	Abstract Reasoning	Working Memory
WASO	−0.06
Delta
Absolute		1.0 (0.03)**
Relative		9.9 (5.6)†	−0.55 (1.7)
Sigma
Absolute		−1.70 (2.0)	−0.12 (0.63)
Relative		−69.84 (29.24)*	−1.54 (8.58)

Associations between change in sleep and change in cognition at baseline across BBTI and IC. Regression model beta values are displayed for WASO. Mixed model unstandardized parameter estimates (standard errors in parentheses) are displayed for Delta and Sigma across NREM periods. Significant effects are in bold type.

^†p < 0.10;

^*p < 0.05;

^**p < 0.01;

^***p < 0.001.