Table 4.
Variables Associated With Caregiver Sleep
| Predictor | TST (N = 91)
|
WASO (N = 90)
|
Sleep Qualitya (N = 118)
|
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| B | SE B | β | ΔR2 | B | SE B | β | ΔR2 | B | SE B | β | ΔR2 | |
| Step 1: Sociodemographics | ||||||||||||
| Gender | 11.7 | 18.6 | 0.07 | – | – | – | – | – | – | – | – | – |
| KPS | 1.3 | 0.65 | 0.21* | 0.05 | −0.15 | 0.07 | −0.2* | – | – | – | – | – |
| Employment status | – | – | – | – | −0.48 | 1.9 | −0.26* | 0.09* | – | – | – | – |
|
| ||||||||||||
| Step 2: Mood variables | ||||||||||||
| POMS-Anxiety | 7.1 | 3.5 | 0.23* | 0.08** | −0.87 | 0.37 | −0.24* | 0.06* | 0.12 | 0.03 | 0.39** | 0.15** |
|
| ||||||||||||
| Step 3: Subjective sleep | ||||||||||||
| Sleep quality | 12.9 | 11.9 | 0.12 | 0.01 | – | – | – | – | – | – | – | – |
*
p < 0.05;
**
p < 0.01
a
Sleep quality item from Pittsburgh Sleep Quality Index
B—unstandardized regression coefficient; KPS—Karnofsky Performance Scale; POMS—Profile of Mood States; SE—standard error; TST—total sleep time; WASO—wake after sleep onset
Note. Total R2 = 0.14* for TST, 0.15* for WASO, and 0.15* for sleep quality.
Note. Overall models are as follows: for TST, F[4,87] = 3.59, p = 0.009; for WASO, F[3,87] = 4.92, p = 0.003; for sleep quality, F[1,117] = 20.86, p ≤ 0.001