Sleep-Wake Patterns during the Acute Phase after First-Ever Stroke
Table 5
Multivariate analysis (linear regression) of the possible predictors (sociodemographic, clinical variables and context) of sleep-wake patterns with total sleep time, number of wakes, wake in percent, and minutes sleep at daytime as dependent variables (standardized beta, ).
Total sleep time (TST)
Wakes
Wake % of TST
Daytime sleep
Step 1. Sociodemographic
Age
0.19
.18
0.15
.30
−0.03
.85
−0.02
.99
Sex (men as ref.)
0.21
.047
−0.13
.21
−0.11
.31
0.11
.31
Education (low, high)
0.05
.60
0.03
.77
−0.02
.88
0.03
.75
Paired relationship (paired as ref.)
−0.09
.41
−0.12
.24
−0.06
.56
0.08
.44
Work (paid work as ref.)
−0.05
.74
0.04
.78
0.01
.96
0.07
.60
Explained variance ()
7.2%
5.7%
0.7%
3.6%
Step 2. Clinical
Physical functioning (SF-36–PF)
0.02
.89
−0.06
.56
−0.08
.47
−0.08
.49
Sedatives
0.00
.99
−0.01
.95
0.14
.19
−0.08
.47
Time since admission (days)
0.05
.63
−0.05
.64
−0.11
.30
0.19
.08
Explained variance ()
7.5%
7.3%
4.3%
8.5%
change
0.3%
1.6%
3.7%
4.9%
Step 3. Context
Slept at home all nights (hospital as ref.)
0.10
.38
−0.32
.007
−0.21
.09
−0.02
.84
Slept both at hospital and home (hospital as ref.)
