Table 5. Predictors of Caregiver Cognitive/Behavioral Health in Multiple Regression.
| Fatigue (n = 78) |
Quality of Life (n = 63) |
|||||||
|---|---|---|---|---|---|---|---|---|
| Predictor | B | SE B | β | β R 2 | B | SE B | β | Δ R 2 |
| Step 1 (covariates) | ||||||||
| Age | .08 | .22 | .04 | −.16 | .10 | −.22 | ||
| Gender | −6.60 | 5.32 − | .14 | .03 | −4.90 | 2.26 | −.25* | .08 |
| Step 2 (deprive/disrupt) | ||||||||
| Karnofsky score | .44 | .20 | .26* | .02 | .08 | .02 | ||
| Employment | 3.58 | 5.35 | .08 | −.73 | 2.38 | −.04 | ||
| POMS-Anxiety | −1.50 | 1.01 − | .18 | −.42 | .47 | −.12 | ||
| Smoking status | 12.51 | 7.30 | .19 | −4.43 | 3.26 | −.16 | ||
| Comorbidities | −4.36 | 3.02 − | .16 | .20* | −.53 | 1.34 | −.05 | .16 |
| Step 3 (sleep loss) | ||||||||
| TST | −.08 | .04 − | .28* | −.01 | .02 | −.06 | ||
| WASO | −.31 | .31 − | .14 | .25 | .14 | .27 | ||
| Sleep qualitya | −.68 | 3.39 − | .02 | .05 | −3.67 | 1.56 | −.30* | .13* |
| Total R2 | .25* | .37** | ||||||
| Overall model | F (10, 68) = 2.25, p = .03 | F (10, 53) = 3.07, p < .01 | ||||||
Note: POMS, Profile of Mood States; TST, total sleep time; WASO, wake after sleep onset.
a
Item from Pittsburgh Sleep Quality Index. Lower score indicates better sleep quality.
*
p < .05.
**
p < .01.