Table 1.
Descriptive analysis of the population stratified by cognitive function
| Total (n = 194*) |
Cognitive impairment (n = 82) |
Non-cognitive impairment (n = 112) |
P | |
|---|---|---|---|---|
| Age; mean (SD) | 81.6 (5.8) | 82.3 (5.3) | 81.0(6.1) | 0.114 |
| Female; n (%) | 132 (68.0) | 54 (65.9) | 78 (69.6) | 0.576 |
| Marital status; n (%): | 0.347 | |||
|
Married Divorced Single Widow |
85 (43.8) 5 (2.6) 20 (10.3) 84 (43.3) |
41 (50.0) 1 (1.2) 9 (11.0) 31 (37.8) |
44 (39.3) 4 (3.6) 11 (9.8) 53 (47.3) |
|
| Lives alone; n (%) | 76 (39.4) | 28 (34.2) | 48 (43.2) | 0.201 |
| Educational level; n (%): | 0.106 | |||
|
Analphabet Elemental Secondary University |
10 (5.2) 78 (40.4) 79 (40.9) 26 (13.5) |
8 (9.8) 32 (39.0) 32 (39.0) 10 (12.2) |
2 (1.8) 46 (41.4) 47 (42.3) 16 (14.4) |
|
| Barthel index a; mean (SD) | 92.4 (11.1) | 90.4 (10.2) | 93.9 (7.1) | 0.005 |
| Lawton index; mean (SD) | 5.29 (2.5) | 4.30 (2.62) | 6.07 (2.10) | 0.000 |
| Charlson index b; mean (SD) | 5.6 (1.8) | 5.8 (1.9) | 5.4 (1.7) | 0.136 |
| Number of drugs c; mean (SD) | 7.7 (3.4) | 7.9 (3.5) | 7.7 (3.2) | 0.376 |
| Falls in the last year; n (%) | 92 (47.4) | 41 (50.0) | 51 (45.5) | 0.538 |
| SPPB d; mean (SD) | 7.38 (2.36) | 7.0 (2.12) | 7.66 (2.61) | 0.057 |
| Gait speed (m/s); mean (SD) | 0.70 (0.20) | 0.67 (0.19) | 0.73 (0.20) | 0.041 |
| Chair Stand Test (s); median (IQR) | 23.95 (15.7) | 23.05 (13.80) | 24.60 (15.69) | 0.500 |
| Balance impairment; n (%) | 101 (52.1) | 44 (53.7) | 57 (50.9) | 0.703 |
*Sample with available 3-months follow-up
IQR: Interquartile Range. SD: Standar Desviation
a Barthel index: range from 0-100. b Charlson index, range from 0–8. c Polypharmacy is defined as more than 5 drugs. d Short Physical Performance Battery, range from 0–12 points, < 10 points frailty indicator