TABLE 1.
Demographic and clinical characteristics of normal and MCI groups.
| Normal (n = 108) | MCI (n = 12) | t/χ2 | p | |
| Age, mean (SD) | 72.3 (6.2) | 75.8 (7.7) | -1.835 | 0.069 |
| Sex, n (%) | 0.017 | 0.896 | ||
| Male 0 | 34 (31.5%) | 4 (48%) | ||
| Female 0 | 74 (68.5%) | 8 (52%) | ||
| Education year, n (%) | 4.477 | 0.345 | ||
| 0 | 2 (1.9%) | 1 (8.3%) | ||
| 1–6 | 16 (14.8%) | 1 (8.3%) | ||
| 7–9 | 14 (13%) | 3 (25%) | ||
| 10–12 | 38 (35.2%) | 5 (41.7%) | ||
| ≥12 | 38 (35.3%) | 2 (16.6%) | ||
| Marriage, n (%) | 0.728 | 0.948 | ||
| Unmarried | 3 (2.8%) | 0 (0%) | ||
| Married | 74 (68.5%) | 8 (66.7%) | ||
| Cohabit | 2 (1.9%) | 0 (0%) | ||
| Divorced | 7 (6.5%) | 1 (8.3%) | ||
| Bereaved | 22 (20.4%) | 3 (25%) | ||
| Occupation, n (%) | 0.897 | 0.947 | ||
| Employed | 23 (21.3%) | 4 (33.3%) | ||
| Unemployed | 85 (78.7%) | 8 (66.7%) | ||
| Psychiatric disease history, n (%) | 0.144 | 0.705 | ||
| Yes | 39 (56.5%) | 5 (41.7%) | ||
| No | 69 (63.9%) | 7 (58.3%) | ||
| Depressive disorder history, n (%) | 0.745 | 0.388 | ||
| Yes | 24 (22.2%) | 4 (33.3%) | ||
| No | 84 (77.8% | 8 (66.7%) | ||
| Current psychiatric medication, n (%) | 1.263 | 0.261 | ||
| Yes | 21 (19.4%) | 4 (33.3%) | ||
| No | 87 (80.6%) | 8 (66.7%) | ||
| Current cognitive medication | 3.333 | 0.068 | ||
| Yes | 9 (8.3%) | 3 (25%) | ||
| No | 99 (91.7%) | 9 (75%) | ||
| SGDS-K*, mean (SD) | 4.26 (4) | 5.09 (3.53) | -0.657 | 0.513 |
| PROVE-DS**, mean (SD) | 15.77 (11.9) | 14.5 (12.47) | 0.347 | 0.729 |
| PROVE-SR**, mean (SD) | 2.98 (2.14) | 2.75 (2.56) | 0.349 | 0.728 |
| BS4MI-elderly, n (%) | 4.107 | 0.128 | ||
| Green (normal) | 49 (45.4%) | 3 (25%) | ||
| Yellow (risk) | 49 (45.4%) | 9 (75%) | ||
| Red (disorder) | 10 (9.3%) | 0 (0%) | ||
| Computer use experience, n (%) | 0.768 | 0.381 | ||
| Yes | 68 (63%) | 6 (50%) | ||
| No | 40 (37%) | 6 (50%) | ||
| Smartphone use experience, n (%) | 1.034 | 0.309 | ||
| Yes | 105 (97.2%) | 11 (91.7%) | ||
| No | 3 (2.8%) | 1 (8.3%) | ||
| DHEAsum (nmol/L), mean (SD) | 5.53 (4.01) | 5.6 (4.4) | 0.241 | 0.624 |
*The number of participants who implemented the scale was 102 in the normal group and 11 in the MCI group.
**The number of people who implemented the scale were 107 in the normal group and 12 in the MCI group.
MCI, mild cognitive impairment; SD, standard deviation; SGDS-K, short form of the Korean Geriatric Depression Scale; PROVE, PROtective and Vulnerable factors battEry questionnaire; DS, depressive symptomatology; SR, suicide risk; BS4MI-elderly, brief screening for four mental illnesses in the elderly; DHEA, dehydroepiandrosterone.