TABLE 1

Percent of time spent awake and in the different sleep stages (S1, S2, SWS, and REM), and percent of epochs containing movements during a 70-min interval including 60 min of insulin infusion and the succeeding 10-min period, for early and late sleep hypoglycemia and for respective intervals in the control nights

Early sleep
Late sleep
P
Control nightHypoglycemia nightControl nightHypoglycemia nightEarly/lateHypoglycemiaEarly/late* hypoglycemia
Wake (%)0 ± 06 ± 31 ± 06 ± 10.9810.0010.717
S1 (%)8 ± 312 ± 316 ± 627 ± 60.0230.0530.429
S2 (%)57 ± 654 ± 655 ± 752 ± 60.6390.6470.982
SWS (%)33 ± 627 ± 712 ± 58 ± 4<0.0010.1630.893
REM (%)2 ± 20 ± 017 ± 48 ± 3<0.0010.0950.217
Movement (%)8 ± 119 ± 512 ± 320 ± 20.237<0.0010.582
  • Data are means ± SE. P values were derived from ANOVA, including a repeated-measure factor “hypo” for hypoglycemia vs. control night and “early/late” for early vs. late sleep. Early/late* hypoglycemia denotes the interaction term of both factors.