Table 1.
Basic descriptive data.
| Characteristic | Mean ± SD | Min | Max |
|---|---|---|---|
| N (female/male) | 718 (492/226) | ||
| Age (years) | 76.78 ± 8.7 | 51 | 97 |
| Education (years) | 10.95 ± 2.5 | 6 | 22 |
| MMSE | 19.52 ± 5.3 | 0 | 29 |
| Orientation to time | 3.06 ± 1.6 | 0 | 5 |
| Orientation to place | 3.65 ± 1.4 | 0 | 5 |
| Registration | 2.74 ± 0.6 | 0 | 3 |
| Calculation | 2.03 ± 1.6 | 0 | 5 |
| Repetition | 0.76 ± 0.4 | 0 | 1 |
| 3-step command | 2.47 ± 0.8 | 0 | 3 |
| Reading and obeying | 0.92 ± 0.3 | 0 | 1 |
| Recall | 0.35 ± 0.7 | 0 | 3 |
| Naming | 1.94 ± 0.3 | 0 | 2 |
| Writing | 0.84 ± 0.4 | 0 | 1 |
| Copying | 0.76 ± 0.4 | 0 | 1 |
| PSMS | 4.97 ± 1.5 | 0 | 6 |
| L-IADL (male) | 2.36 ± 1.8 | 0 | 5 |
| L-IADL (female) | 3.56 ± 2.8 | 0 | 8 |
N: number of people; SD, standard deviation; MMSE, Mini-Mental State Examination; PSMS, Physical Self-maintenance Scale; L-IADL, Lawton’s Instrumental Activities of Daily Living Scale.