Table 1 Demographic, psychiatric and sleep laboratory-based memory data for patients with depression (n = 34) and control participants (n = 30)
|  | Cases n = 34 | Controls n = 30 | Test statistic | Effect Size | p-value |
|---|---|---|---|---|---|
Age, years | 63.85 (10.76) | 65.70 (9.11) | −0.74 | 0.18 | 0.46 |
Gender, male:female # | 17:17 | 17:13 | −0.28 | 0.035 | 0.59 |
CIRS, total score ‡ | 4.00 (1.00, 6.00) | 2.00 (1.00, 4.00) | 1.81 | 0.24 | 0.07 |
HDRS, total score ‡ | 7.00 (4.00, 11.75) | 1.50 (0, 4.00) | 4.32 | 0.58 | 0.000 |
Geriatric Depression Scale, /30 ‡ | 17.00 (9.00, 22.50) | 2.00 (0, 5.00) | 5.51 | 0.71 | 0.000 |
PSQI, total score | 8.30 (4.12) | 5.07 (3.57) | 3.3 | 0.84 | 0.002 |
Body Mass Index | 25.5 (3.7) | 27.1 (3.9) | −1.6 | 0.42 | 0.11 |
Education, years | 13.5 (3.2) | 13.7 (2.9) | −0.23 | 0.10 | 0.82 |
MMSE, /30‡ | 29.00 (27.00, 30.00) | 30.00 (28.50, 30.00) | −1.58 | 0.21 | 0.11 |
WTAR, predicted IQ | 106.3 (10.6) | 107.2 (8.5) | −0.36 | 0.09 | 0.72 |
Depression Age of Onset (years) | 42.2 ± 19.1 years | – | – | – | – |
Median no. depressive episode | 2.0 (1.0–3.0) | – | – | – | – |