Table 1. General characteristics of study subjects.
| Characteristics | Total (n = 242) | MCI (n = 36) | Normal (n = 206) | p-value | |
|---|---|---|---|---|---|
| Gender | 0.067 | ||||
| Males (%) | 64 (26.4) | 14 (21.9) | 50 (78.1) | ||
| Females (%) | 178 (73.6) | 22 (12.4) | 156 (87.6) | ||
| Age | 64.86 ± 7.50 | 68.52 ± 6.93* | 64.22 ± 7.43 | 0.001 | |
| Height | 158.67 ± 7.54 | 158.70 ± 9.69 | 158.66 ± 7.12 | 0.890 | |
| Weight | 61.94 ± 9.78 | 64.08 ± 11.11 | 61.56 ± 9.50 | 0.057 | |
| BMI | 24.54 ± 3.02 | 25.41 ± 3.77 | 24.39 ± 2.86 | 0.061 | |
| Body fat (%) | 30.66 ± 7.13 | 30.02 ± 8.06 | 30.77 ± 6.97 | 0.452 | |
| Education (%) | 0.962 | ||||
| Illiterate | 17 (7.1) | 3 (17.6) | 14 (82.4) | ||
| Elementary school | 23 (9.6) | 4 (17.4) | 19 (82.6) | ||
| Middle school | 29 (12.1) | 5 (17.2) | 24 (82.8) | ||
| High school | 83 (34.7) | 12 (14.5) | 71 (85.5) | ||
| College/university | 73 (30.5) | 11 (15.1) | 62 (84.9) | ||
| Graduate school | 14 (5.9) | 1 (7.1) | 13 (92.9) | ||
| Employment status (%) | 0.408 | ||||
| Worker | 42 (17.7) | 7 (16.7) | 35 (83.3) | ||
| Owner-operator | 30 (12.7) | 3 (10.0) | 27 (90.0) | ||
| Office job | 32 (13.6) | 7 (21.9) | 25 (78.1) | ||
| Management | 2 (0.8) | 0 (0.0) | 2 (100.0) | ||
| Professional | 8 (3.4) | 0 (0.0) | 8 (100.0) | ||
| Others | 17 (7.2) | 4 (23.5) | 13 (76.5) | ||
| Homemaker | 88 (37.3) | 10 (11.4) | 78 (88.6) | ||
| Unemployed | 17 (7.2) | 5 (29.4) | 12 (70.6) | ||
MCI group is defined as the subjects with an average score of 16 percentiles or less between the delayed verbal scores and delayed visual scores. Data are means ± standard deviation and No. (%).
MCI, mild cognitive impairment; BMI, body mass index.
*Statistical difference between the MCI group and normal group by t-test at p < 0.05.