TABLE 2

Sleep efficiency (percent of time asleep) and duration of sleep stages during the last two hypoglycemic steps (55 mg/dl [0000–0100]) and 45 mg/dl [0100–0200]) of the night asleep studies in nondiabetic subjects and patients with type 1 diabetes

NondiabeticDiabetic
n84
0000–0100
 Sleep efficiency (%)44.4 ± 13.866.3 ± 10.0
 Sleep stages (min)
  I2.9 ± 0.93.3 ± 0.7
  II16.5 ± 5.227.6 ± 5.4
  III2.9 ± 1.63.9 ± 2.3
  IV4.3 ± 2.32.5 ± 2.5
  REM0.1 ± 0.12.4 ± 2.4
0100–0200
 Sleep efficiency (%)34.3 ± 10.280.0 ± 10.4*
 Sleep stages (min)
  I4.3 ± 1.12.5 ± 0.5
  II12.5 ± 4.724.6 ± 8.4
  III0.4 ± 0.44.5 ± 1.4
  IV0.0 ± 0.011.6 ± 7.0
  REM3.4 ± 1.94.8 ± 2.5
  • Data are n or means ± SE.

  • *

    * P = 0.0190 vs. nondiabetic subjects; P = 0.0227 diabetic vs. nondiabetic subjects for 0000–0200.