Table 3.
Significant predictors of institutionalization at a follow-up time of 2.5 years
|
Variable |
Bivariate predictor analysis |
Binary logistic regressiona |
||||||
|---|---|---|---|---|---|---|---|---|
|
Institutionalization yes |
Institutionalization no |
Test value | P | Regression coefficient B | Standard error | Wald | P | |
|
n = 32 (12%) |
n = 237 (88%) |
|||||||
| n (n%) or mean (SD) | n (n%) or mean (SD) | |||||||
| Living situation: |
|
|
Χ2 = 6.59 |
.015 |
−1.60 |
.52 |
9.41 |
.002 |
| - togetherb |
15 (8%) |
165 (92%) |
|
|
|
|
|
|
| - separately |
17 (19%) |
72 (81%) |
|
|
|
|
|
|
| Caregiver burdenc |
13.7 (9.0) |
9.3 (7.8) |
T = −2.89 |
.004 |
.07 |
.03 |
7.38 |
.007 |
| Care-receiver’s age (years) |
84.4 (7.0) |
79.2 (6.2) |
T = −4.20 |
< .001 |
.09 |
.03 |
7.34 |
.007 |
| MMSEd |
17.4 (3.2) |
19.0 (3.8) |
T = 2.68 |
.010 |
-.14 |
.06 |
5.87 |
.015 |
| Caregiver’s age (years) |
63.1 (11.2) |
58.6 (13.7) |
T = −2.07 |
.044 |
.03 |
.02 |
2.57 |
.109 |
| Region: |
|
|
Χ2 = 4.56 |
.046 |
.72 |
.48 |
2.26 |
.133 |
| - urbane |
10 (21%) |
38 (79%) |
|
|
|
|
|
|
| - rural | 21 (10%) | 193 (90%) | ||||||
n = 269 cases; 351 cases of the total sample less 82 care-receivers who died at home.
aChi2 = 41.36 (p < .001); Nagelkerke’s R2 = .283 (none of the 6 potential predictors had to be excluded from the multivariate analysis due to multicollinearity).
bFamily caregiver and care-receiver with dementia share a flat or house.
cScore of the BSFC-s.
dMini-Mental Status Examination.
eUrban region: cities with at least 100,000 citizens; rural region: cities with less than 100,000 citizens and villages.
Other variables were not significantly correlated with institutionalization: study arm (p = .500); sex of family caregiver (p = .527); caregiver spouse yes/no (p = .434); sex of care-receiver with dementia (p = .538); NOSGER subscale “Disturbing behavior” (p = .073); NOSGER subscale “IADL” (p = .257); family caregiver diagnosed with depression yes/no (p = .696); care level yes/no (p = .249); Barthel Index (p = .737); caregiving tasks at night yes/no (p = .532); average hours of daily care (p = .389).