Table 1.
Sample characteristics at baseline
| A1 | CDR ≥ 1 | CDR < 1 | P-valuesa | ||
|---|---|---|---|---|---|
| 1163 | 932 | ||||
| Socio-demographics | |||||
| Age | Mean (SD) | 84.4 (7.8) | 84.5 (7.5) | 83.8 (9.0) | 0.223 |
| Females | N (%) | 846 (72.7) | 686 (73.6) | 156 (68.7) | 0.139 |
| Education < 10 years | N (%) | 847 (74.8) | 673 (74.1) | 170 (76.9) | 0.390 |
| Married | N (%) | 221 (19.0) | 185 (19.8) | 36 (15.9) | 0.178 |
| Health condition | |||||
| GMHR | |||||
| Good Fairly good Poor Very Poor |
N (%) N (%) N (%) N (%) |
194 (17.2) 386 (34.1) 378 (33.4) 173 (15.3) |
142 (15.7) 291 (32.2) 322 (35.6) 150 (16.6) |
52 (23.4) 94 (42.3) 53 (23.9) 23 (10.4) |
<0.001 |
| PSMS score | Mean (SD) | 18.1 (5.4) | 18.8 (5.3) | 15.4 (4.8) | <0.001 |
| NPI Agitation sub-syndrome | Mean (SD) | 5.8 (8.0) | 6.5 (8.2) | 2.9 (6.1) | <0.001 |
| NPI Psychosis sub-syndrome | Mean (SD) | 2.8 (5.1) | 3.2 (5.3) | 1.3 (3.8) | <0.001 |
| NPI Affective sub-syndrome | Mean (SD) | 3.5 (5.3) | 3.7 (5.4) | 2.9 (4.9) | 0.041 |
| NPI Apathy | Mean (SD) | 2.2 (3.7) | 2.4 (3.8) | 1.1 (2.9) | <0.001 |
| No of drugs | Mean (SD) | 6.0 (3.1) | 5.8 (3.0) | 6.9 (3.3) | <0.001 |
| Days in NH | Mean (SD) | 938.3 (1013.0) | 928.9 (910.1) | 975.5 (1359.3) | 0.534 |
CDR Clinical Dementia Rating scale
GMHR General Medical Health rating
PSMS Physical Self-Maintenance Scale
NPI Neuropsychiatric Inventory
NH Nursing home
aCalculated by using t-test for Independent samples for continuous or χ2-test for categorical variables