Table 1—

Sleep parameters during the first and the second halves of the night

Type 1 diabetic patientsHealthy subjectsP value
First night-half
    TST (min)202.8 ± 0.8201.7 ± 1.60.83
    WASO (%)0.7 ± 0.31.5 ± 0.80.25
    Stage 1 (%)11.9 ± 1.717.8 ± 3.30.59
    Stage 2 (%)58.6 ± 3.147.5 ± 4.00.04
    SWS (%)21.3 ± 3.724.7 ± 3.30.09
    REM (%)7.5 ± 1.58.6 ± 1.80.38
    Movement (%)12.3 ± 2.012.7 ± 2.20.33
    Movement time (%)0.7 ± 0.20.5 ± 0.20.52
Second night-half
    TST (min)194.6 ± 9.1208.4 ± 7.40.69
    WASO (%)3.1 ± 1.63.9 ± 2.20.21
    Stage1 (%)16.3 ± 2.420.3 ± 4.90.27
    Stage 2 (%)52.6 ± 3.046.6 ± 5.40.04
    SWS (%)8.3 ± 2.37.0 ± 2.00.66
    REM (%)20.0 ± 2.322.2 ± 2.50.27
    Movement (%)13.0 ± 1.717.8 ± 3.40.68
    Movement time (%)0.6 ± 0.20.5 ± 0.20.54
Entire night
    TST (min)395 ± 15404 ± 100.93
    WASO (%)1.8 ± 0.82.6 ± 1.10.52
    Stage 1 (%)14.2 ± 1.719.2 ± 3.30.34
    Stage 2 (%)55.6 ± 2.447.2 ± 4.10.01
    SWS (%)14.7 ± 2.614.9 ± 2.30.75
    REM (%)13.9 ± 1.515.5 ± 1.30.58
    Movement (%)12.4 ± 1.715.1 ± 2.30.23
    Movement time (%)0.6 ± 0.10.5 ± 0.10.50
  • Data are means ± SEM. Percent values refer to TST. P values derive from unpaired Student's t test.