Table 3.
Linear mixed-model-analyses of quality of life
| Dependent variable | p-value model | R2 | independent (Co-) Variables | p-value | Beta | 95% CI |
|---|---|---|---|---|---|---|
| Proxy-rated quality of life (QoL-AD difference t1-t0) | < 0.001 | 0.183 | ||||
| Intercept | 0.001 | 11.088 | 4.543;17.632 | |||
| Sex: femalea | 0.830 | −0.123 | −1.220;0.973 | |||
| Living situation of caregiverb | ||||||
| nearby | 0.981 | −0.017 | −1.375;0.134 | |||
| greater distance | 0.969 | 0.039 | −1.883;1.961 | |||
| Social Index (Scheuch-Winkler)c | ||||||
| middle | 0.648 | 0.291 | −0.885;1.467 | |||
| high | 0.536 | 0.606 | −1.257;2.469 | |||
| at least 1 challenging behavior (CMAI)e | 0.247 | 0.816 | −0.524;2.468 | |||
| Type of DCNd | ||||||
| Organization | 0.570 | 0.632 | −1.716;2.980 | |||
| Hybrid | 0.746 | 0.301 | −1.667;2.269 | |||
| Mission | 0.509 | 0.642 | −1.401;2.687 | |||
| agef | 0.816 | −0.007 | −0,069;0.052 | |||
| depression (GDS)f | 0.352 | −0.077 | −0.233;0.080 | |||
| Capacities of daily living (IADL)f | 0.810 | 0.039 | −0.274;0.352 | |||
| Caregiver burden (BIZAD_ADL)f | 0.118 | −0.142 | −0.315;0.030 | |||
| QoL-AD at baseline | < 0.001 | −0.357 | −1.401;-0.231 | |||
a compared to men; b compared to living together; c compared to low; d compared to Stakeholder; e compared to no challenging behavior. DCN Dementia Care Network, f co-variables, GDS Geriatric Depression Scale, CMAI Cohen-Mansfield-Agitation Inventory, IADL Instrumental Activities of Daily Living, QoL-AD Quality of Life Alzheimer’s Disease, BIZAD_ADL Berliner Inventar zur Angehörigenbelastung - Demenz – Subscale Burden due to practical task