Table 1 Sample characteristics at baseline (N = 955)
|  |  | All N = 955 | No MCI or Dementia N = 295 | MCI N = 266 | Dementia N = 394 |
|---|---|---|---|---|---|
Socio-demographics | |||||
 Age | Mean (SD) | 83.4 (5.6) | 81.7 (5.6) | 83.4 (5.4) | 84.6 (5.5) |
 Females | N (%) | 653 (68.4) | 202 (68.5) | 188 (70.7) | 263 (66.8) |
 Marrieda | N (%) | 287 (30.1) | 81 (27.5) | 80 (30.2) | 126 (32.0) |
Health condition | |||||
 GMHRa | |||||
  Good | N (%) | 149 (15.6) | 67 (22.7) | 42 (15.8) | 40 (10.2) |
  Fairly good | N (%) | 378 (39.6) | 127 (43.1) | 109 (41.0) | 142 (36.1) |
  Poor | N (%) | 326 (34.2) | 80 (27.1) | 93 (35.0) | 153 (38.9) |
  Very Poor | N (%) | 101 (10.6) | 21 (7.1) | 22 (8.3) | 58 (14.8) |
P-ADL scoreb | Mean (SD) | 9.1 (3.5) | 7.6 (2.1) | 8.4 (3.0) | 10.8 (4.0) |
I-ADL scoreb | Mean (SD) | 5.2 (2.4) | 6.6 (1.6) | 5.9 (2.0) | 3.6 (2.2) |
CDR-SoB | Mean (SD) | 3.2 (3.8) | 0.8 (1.4) | 1.6 (2.0) | 6.1 (4.0) |
Neuropsychiatric sub-syndrome score | |||||
 Agitationc | Mean (SD) | 1.7 (4.6) | 0.7 (2.7) | 1.1 (3.1) | 2.8 (6.1) |
 Psychosisc | Mean (SD) | 0.5 (2.0) | 0.1 (0.5) | 0.2 (1.5) | 1.1 (2.8) |
 Affectivec | Mean (SD) | 2.9 (5.3) | 1.1 (2.6) | 2.2 (3.9) | 4.7 (6.8) |
Use of psychotropic medication | |||||
 Antipsychotics | N (%) | 36 (3.8) | 5 (1.7) | 7 (2.6) | 24 (6.1) |
 Antidepressants | N (%) | 148 (15.5) | 32 (10.9) | 38 (14.3) | 78 (19.8) |
 Anxiolytics | N (%) | 84 (8.8) | 15 (5.1) | 27 (10.2) | 42 (10.7) |
 Sedatives | N (%) | 211 (22.1) | 54 (18.3) | 59 (22.2) | 98 (24.9) |
 Cognitive enhancers | N (%) | 54 (5.7) | 0 | 4 (1.5) | 50 (12.7) |
No of drugs | Mean (SD) | 5.4 (2.9) | 5.1 (3.1) | 5.4 (2.8) | 5.5 (2.9) |