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. Author manuscript; available in PMC: 2021 Mar 15.
Published in final edited form as: J Psychiatr Res. 2017 Mar 6;91:105–110. doi: 10.1016/j.jpsychires.2017.03.004

Table 2.

Actigraphic sleep parameter estimates.

Baseline BLT
Mean SE Mean SE p
Sleep start (h) 0:34 0:33 23:59 0:21 0.075
Sleep end (h) 7:47 0:34 7:04 0:20 0.064
Mid-sleep time (h) 4:11 0:32 3:31 0:18 0.048
Total sleep duration (h) 7.2 0.4 7.1 0.4 0.677
Sleep efficiency (%) 81.3 2.9 77.4 3.0 0.333
% Wake 7.4 0.9 8.0 0.7 0.243
Wake After Sleep Onset (WASO) 30.7 4.6 32.3 4.0 0.627
Fragmentation Index (%) 14.7 2.4 18.9 2.3 0.078
DLMO (time; hours:min) 19:49 0:14 19:21 0:16 0.028

Note: Sleep timing and duration are calculated based on the primary sleep session/day, excluding naps. All data were compared using paired samples t-tests (N=8), with significance indicated in bold (p < 0.05) or trends indicated in italics (p < 0.10).