Table 3.
Differences of subjective cognitive function (PDQ-D score) and objective cognitive function (composite NCT z score) and between groups of major depressed patients.
| Composite NCT z score | Significant difference | PDQ-D score | Significant difference | Discrepancy scoreb | Significant difference | |
|---|---|---|---|---|---|---|
| Perceived disabilitya | ||||||
| No (N = 16) | −0.1 (0.8) | t = −0.54, p = 0.59 | 20.4 (11.0) | t = −1.97, p = 0.05 | −0.5 (1.0) | t = −1.92, p = 0.06 |
| Yes (N = 41) | 0.0 (0.7) | 29.4 (16.9) | 0.2 (1.3) | |||
| Gender | ||||||
| Male (N = 7) | 0.4 (0.8) | t = 1.62, p = 0.11 | 20.1 (9.5) | t = −1.20, p = 0.24 | 0.0 (1.2) | t = 0.02, p = 0.99 |
| Female (N = 50) | −0.1 (0.7) | 27.8 (16.5) | 0.0 (1.3) | |||
| Currently taking antidepressants | ||||||
| No (N = 15) | 0.2 (0.9) | t = 1.49, p = 0.14 | 20.9 (14.6) | t = −1.73, p = 0.09 | −0.1 (1.5) | t = −0.47, p = 0.64 |
| Yes (N = 42) | -0.1 (0.7) | 29.0 (16.0) | 0.0 (1.2) | |||
| Currently taking benzodiazepines | ||||||
| No (N = 17) | 0.0 (0.7) | t = -0.11, p = 0.91 | 24.7 (17.4) | t = −0.67, p = 0.51 | −0.2 (1.6) | t = −0.60, =0.55 |
| Yes (N = 40) | 0.0 (0.8) | 27.8 (15.4) | 0.1 (1.1) | |||
a≥1 SDS subscale ≥ 5 points. bComposite NCT z score subtracted by corresponding reversed PDQ-D z score.