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. Author manuscript; available in PMC: 2022 Aug 1.
Published in final edited form as: Neurosci Biobehav Rev. 2021 May 15;127:675–688. doi: 10.1016/j.neubiorev.2021.05.010

Table 4.

Average Pearson correlation between episodic memory performance and sleep quality for select sleep measurement methods with the 95% confidence interval

Sleep Measure r LL UL k j p
PSG 0.22 0.14 0.29 45 558 <.001
Actigraphy 0.13 −0.01 0.26 6 38 0.07
Self-Report 0.05 −0.11 0.21 8 20 0.51

NOTE: PSG = polysomnography; LL = lower confidence interval; UL = upper confidence interval; k = the number of studies; j = the number of effect sizes.