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. Author manuscript; available in PMC: 2020 Mar 1.
Published in final edited form as: Sleep Med. 2018 Dec 30;55:115–123. doi: 10.1016/j.sleep.2018.12.013

Figure 4.

Figure 4

(A) REM Tendency on Successive MSLT Naps by Age Group; REM tendency decreased over the course of the MSLT (Nap 2 highest, Nap 4 lowest Cochran’s Q=p<.001, but varied with age group (χ2= p<.001); (B) Number of REM onsets on the MSLT by Age Group; u-shaped function between age and rate of REM (χ2= p<.001); N=2498 for both figures