Table 1.
Baseline participant and facility characteristics
| Participant characteristics | Clustered domestic model of care (n = 120) | Standard model of care (n = 421) |
|---|---|---|
| Age, mean (SD) | 83.3 (9.0) | 86.1 (8.3)* |
| Female, n (%) | 90 (75.0) | 313 (74.4) |
| Married, n (%) | 36 (30.0) | 101 (24.1)* |
| Modified Barthel Index, mean (SD) | 37.1 (31.1) | 41.3 (33.3) |
| Number of comorbid conditions, (Cohen–Mansfield Index), mean (SD) | 3.2 (1.4) | 3.8 (1.4)* |
| PAS-Cog, mean (SD) | 17.4 (16.5) | 12.2 (11.4)* |
| Diagnosis of dementia in medical records, n (%) | 117 (97.5) | 231 (55.1%)* |
| PAS-Cog 0–<4 (no cognitive impairment), n (%) | 3 (2.5) | 90 (21.4) |
| Pas-Cog 4–<10 (mild cognitive impairment), n (%) | 12 (10.0) | 88 (20.9) |
| Pas-Cog 10–<16 (moderate cognitive impairment), n (%) | 18 (15.0) | 64 (15.2) |
| Pas-Cog 16–21 (severe cognitive impairment), n (%) | 87 (72.5) | 179 (42.5) |
| Dementia diagnosis or PAS-Cog ≥5, n (%) | 120 (100) | 333 (79)* |
| Weekly interaction with close social ties, n (%) | 66 (56.4) | 312 (75.2)* |
| CCI-6D proxy responses, n (%) | 114 (95.0) | 277 (65.8)* |
| Facility characteristics | Clustered domestic model of care (n = 4) | Standard model of care (n = 13) |
| Metropolitan location, n (%) | 3 (75) | 10 (77) |
| Total facility size (No. beds), mean (SD) | 83 (6.6) | 83 (6.9) |
| High staff training costs (>$1000 per resident annually), n (%) | 4 (100) | 4 (33) |
| High direct care hours (>2.5 per resident per day), n (%) | 3 (75.0) | 6 (46) |
| Years since construction, extension or major refurbishment, mean (SD) | 10 (4.3) | 17 (25.1) |
SD, Standard Deviation; NPI-Q, Neuropsychiatric Inventory–Questionnaire; PAS-Cog, Psychogeriatric Assessment Scales–Cognitive Impairment Scale, CCI-6D, Consumer Choice Index–6 Dimensions, *P < 0.05.