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. 2018 Jun 8;39(10):3984–3992. doi: 10.1002/hbm.24225

Table 3.

Sleep architecture and Spearman's rank correlation coefficients between sleep architecture and water‐scaled metabolite concentrations

Time in bed Sleep latency Total sleep time Sleep efficiency Wake after sleep onset NREM sleep N1 N2 N3 REM sleep
(n = 16) [min] [min] [min] [%] [min] [min] [min] [min] [min] [min]
Mean ± SEM 458.56 ± 6.30 17.12 ± 2.68 421.40± 7.09 91.94 ± 1.14 23.96 ± 3.51 321.10 ± 5.15 25.77 ± 2.96 207.75 ± 8.71 87.58 ± 8.61 100.29 ± 6.03
GLX % change −0.09 0.04 −0.07 −0.10 0.17 0.13 −0.01 −0.09 0.16 −0.16
GLX evening −0.12 0.29 −0.22 −0.23 0.21 0.02 0.19 −0.25 0.25 −0.36
GLX morning 0.25 0.24 0.08 −0.06 0.00 0.00 0.20 −0.08 0.00 −0.01
NAA % change 0.24 0.14 0.14 −0.12 0.12 0.46 0.18 −0.35 0.54 −0.26
NAA evening 0.04 0.18 0.02 −0.17 0.12 0.52 0.30 −0.21 0.51 −0.47
NAA morning −0.41 0.04 −0.35 −0.01 −0.09 −0.18 −0.12 0.08 −0.06 −0.26
NAA + NAAG % change −0.19 −0.30 −0.10 −0.01 0.11 0.10 0.03 −0.11 0.14 −0.11
NAA + NAAG evening −0.23 −0.33 −0.03 0.08 0.01 0.28 0.07 −0.39 0.54 −0.19
NAA + NAAG morning −0.38 0.08 −0.32 −0.19 0.13 0.06 0.02 −0.14 0.24 −0.43
GPC + PCh % change −0.15 −0.42 0.13 0.31 −0.16 −0.22 −0.26 −0.12 0.11 0.41
GPC + PCh evening 0.52 −0.18 0.53 0.35 −0.27 0.25 −0.03 −0.24 0.31 0.39
GPC + PCh morning 0.61 0.09 0.47 0.12 −0.09 0.32 0.16 −0.06 0.12 0.21
mI % change 0.28 0.32 0.08 −0.21 0.12 0.12 0.08 0.14 −0.16 −0.08
mI evening 0.36 0.14 0.04 −0.42 0.54 0.26 0.31 −0.22 0.19 −0.16
mI morning 0.02 −0.27 0.02 −0.03 0.21 0.09 0.10 −0.13 0.15 0.01
Cr + PCr % change 0.17 0.06 0.08 −0.18 0.26 0.38 0.15 −0.02 0.23 −0.21
Cr + PCr evening −0.11 −0.07 0.05 0.42 −0.46 −0.27 −0.62 −0.01 0.01 0.31
Cr + PCr morning −0.35 0.10 −0.16 0.31 −0.48 −0.33 −0.45 0.12 −0.17 0.09

Note. Abbreviations: NREM sleep = non‐rapid eye movement sleep; REM sleep = rapid eye movement sleep; sleep efficiency = time in bed divided by total sleep time (NREM + REM).

All p > .8, FDR corrected.