TABLE 2.
Bivariate correlations of subjective cognitive and memory decline with objective cognitive and memory performance, depressive symptoms, disability, and participants’ age, sex, and educational levels.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | |
| Subjective cognitive decline | 1 | – | – | – | – | – | – | – | – |
| Subjective memory decline | 0.469** | 1 | – | – | – | – | – | – | – |
| Objective cognitive performance | −0.260** | −0.129* | 1 | – | – | – | – | – | – |
| Objective memory performance | −0.194** | −0.160* | 0.470** | 1 | – | – | – | – | – |
| Depressive symptoms | 0.233** | 0.205** | −0.148* | –0.065 | 1 | – | – | – | – |
| Disability | 0.341** | 0.276** | −0.411** | 0.257** | 0.368** | 1 | – | – | – |
| Age | 0.362** | 0.149* | −0.410** | −0.301** | 0.134* | 0.373** | 1 | – | – |
| Sexa | –0.091 | –0.003 | –0.016 | 0.69 | 0.172** | 0.111 | 0.003 | 1 | – |
| Educational level | –0.019 | 0.050 | 0.232** | 0.184** | –0.072 | –0.059 | −0.133* | −0.165** | 1 |
*0.05 level (two-tailed).
**0.01 level (two-tailed).
apoint-biserial correlations between gender (1, male; 2, female) and other variables.