Evidence-Based Complementary and Alternative Medicine / 2013 / Article / Tab 3

Research Article

The Stimulation Effect of Auricular Magnetic Press Pellets on Older Female Adults with Sleep Disturbance Undergoing Polysomnographic Evaluation

Table 3

Comparisons of the sleep parameters detected by PSG between the experimental group and the control group by analysis of covariance (ANCOVA).

Sleep parametersPretestPosttestANCOVA
Experiment
( )
Control
( )
Experiment
( )
Control
( )
F P value
Mean ± SDMean ± SDMean ± SDMean ± SD

Sleep latency (to Stage 1) (min) 6.78 0.02*
Total sleep time (min) 5.87 0.02*
Sleep period time (min) 0.18 0.67
SE# (TST/TIB) (%) 10.85 0.00**
Sleep stages (min in sleep period time)
 Wake (WASO#) 6.90 0.02*
 Stage 1 2.22 0.15
 Stage 2 6.29 0.02*
 Stage 3 0.17 0.69
 Stage 4 0.48 0.50
 REM 2.08 0.16
 NREM 0.56 0.46
 SWS 0.02 0.89
Sleep stages (% in sleep period time)
 Wake (WASO#) 6.74 0.02*
 Stage 1 1.98 0.17
 Stage 2 4.75 0.04*
 Stage 3 0.03 0.87
 Stage 4 0.03 0.87
 REM 2.73 0.11
 Arousal index 4.81 0.04*

SE: sleep efficiency; WASO: wake after sleep onset.
P < 0.05; **P < 0.01.