Table 4.
Caregiver Daily Mood and Association with Total Time in Bed, Bedtime, and ADS Use (H3)
| CG negative affect |
CG positive affect |
|
|---|---|---|
| Variable | Estimate (SE) | Estimate (SE) |
|
| ||
| Intercept | 0.599 (0.697) | 4.694 (1.356)*** |
| Within-person predictor | ||
| CG daily TIB | −0.020 (0.015) | 0.018 (0.024) |
| CG daily TIB-squared | 0.003 (0.005) | −0.005 (0.009) |
| CG daily bedtime | −0.010 (0.019) | −0.002 (0.032) |
| PLWD daily TIB | 0.002 (0.012) | −0.011 (0.020) |
| PLWD daily TIB-squared | −0.005 (0.004) | 0.003 (0.007) |
| PLWD daily bedtime | 0.026 (0.018) | 0.006 (0.030) |
| PLWD overnight sleep problems | 0.121 (0.032)*** | −0.186 (0.053)*** |
| × ADS use todaya | −0.111 (0.035)*** | 0.072 (0.057) |
| × ADS use yesterdaya | −0.081 (0.035)* | 0.133 (0.059)* |
| PLWD overnight BPSD | 0.023 (0.008)** | −0.001 (0.013) |
| ADS use todaya | 0.061 (0.036) | −0.064 (0.059) |
| ADS use yesterdaya | 0.100 (0.032)** | −0.113 (0.053)* |
| × ADS use todaya | −0.115 (0.042)** | 0.143 (0.069)* |
| Between-person predictor | ||
| CG average TIB | 0.053 (0.042) | −0.076 (0.081) |
| CG average bedtime | 0.057 (0.043) | −0.022 (0.084) |
| CG TIB variationb | 0.128 (0.098) | 0.008 (0.190) |
| CG bedtime variationb | −0.103 (0.111) | −0.017 (0.216) |
| PLWD average TIB | −0.044 (0.033) | −0.033 (0.064) |
| PLWD average bedtime | 0.005 (0.044) | −0.027 (0.085) |
| PLWD TIB variationb | 0.073 (0.065) | −0.163 (0.126) |
| PLWD bedtime variationb | −0.026 (0.088) | 0.027 (0.171) |
| −2 Log Likelihood | 937.7 | 1,962.8 |
| AIC/BIC | 941.7/948.0 | 1,966.8/1,973.1 |
Notes. Day N = 1,359 (based on 173 caregivers). ADS = adult day services. CG = caregiver. PLWD = person living with dementia. TIB = total time in bed, measured by hours elapsed between self-reported bedtime last night and wakeup time on the day. BPSD = behavior and psychological symptoms of dementia. AIC = Akaike information criterion. BIC = Bayesian information criterion. All daily variables were within-person centered. Non-significant demographic characteristics were trimmed off, including CG age, gender, spouse and adult children relationship, and education, PLWD gender, and duration of care.
1 = use and 0 = nonuse.
Within-person variability around the mean (i.e., iSD).
p < .05.
p < .01.
p < .001.