TABLE 2.
Demographics and clinical characteristics of patients with subjective cognitive decline (SCD) and normal controls (NCs).
| Characteristic/test | SCD | NC | T/χ2/Z | P |
| Age (years) | 74. 0 ±5.6 | 71.8 ± 2.9 | 1.67a | 0.11 |
| Sex (F/M) | 14/8 | 6/14 | 5.31b | 0.05 |
| Education | 10.1 ± 2.0 | 10.4 ± 3.0 | 0.00c | 1.00 |
| MMSE | 27.6 ± 1.8 | 28.2 ± 1.6 | −1.13c | 0.26 |
| MoCA | 23.6 ± 3.9 | 24.1 ± 3.8 | −0.48c | 0.63 |
| AVLT-Immediate Recall | 5.5 ± 1.9 | 4.8 ± 1.5 | −0.98c | 0.33 |
| AVLT-Short Delayed Recall | 8.1 ± 2.6 | 8.2 ± 2.1 | −0.14a | 0.89 |
| AVLT-Long Delayed Recall | 30.9 ± 7.7 | 33.2 ± 7.6 | −1.00c | 0.32 |
| AVLT-Recognition | 10.2 ± 3.1 | 11.2 ± 3.0 | −0.95c | 0.34 |
| Digit Span forward | 8.0 ± 2.3 | 9.0 ± 2.0 | −1.61a | 0.11 |
| Digit Span backward | 5.3 ± 1.9 | 6.2 ± 2.3 | −1.35a | 0.19 |
| WAIS picture completion | 10.1 ± 2.7 | 11.9 ± 3.6 | −1.76a | 0.09 |
| WAIS block design | 27.2 ± 7.3 | 30.4 ± 6.7 | −1.53c | 0.13 |
| GDS | 6.5 ± 5.5 | 2.8 ± 2.6 | −2.65c | 0.01* |
| SAS | 26.4 ± 4.5 | 23.9 ± 4.4 | −1.93c | 0.05 |
| SCD-9 | 3.8 ± 1.9 | 2.4 ± 2.0 | 0.58a | 0.03* |
MMSE, Mini Mental State Examination; MoCA, Montreal Cognitive Assessment; AVLT, Auditory Verbal Learning Test; WAIS, Wechsler Intelligence Scale; GDS, Geriatric Depression Scale; SAS, Self-Rating Anxiety Scale; SCD-9, Subjective Cognitive Decline Self-administered Questionnaire. Data are presented as the mean ± SD. *P < 0.05 indicates significant differences between the groups. aT value was obtained by using the two-sample t-test. bχ2value was obtained using the chi-square test. cZ value obtained by using the rank-sum test.