Table 1.
ANOVA of the demographics, psychiatry rating scores, and FAA in MDD patients and HCs
| Variable | MDD patients without SI (n = 44) | MDD patients with SI (n = 23) | HC (n = 60) | F | p | η2 |
|---|---|---|---|---|---|---|
| Age (yr) | 39.30 ± 11.29 | 37.48 ± 9.33 | 34.83 ± 9.40 | 2.538 | 0.083 | 0.039 |
| Sex | 0.692a | 0.708 | ||||
| Male | 5 (11.4) | 4 (17.4) | 10 (16.7) | |||
| Female | 39 (88.6) | 19 (82.6) | 50 (83.3) | |||
| HAM-A | 24.91 ± 5.03 | 25.48 ± 5.12 | 0.191 | 0.664 | 0.003 | |
| HAM-D | 29.27 ± 6.54 | 30.83 ± 6.32 | 0.871 | 0.354 | 0.013 | |
| FAA | ||||||
| FP1–FP2† | 4.87 ± 16.05 | 10.77 ± 16.55 | −4.66 ± 29.10 | 4.398* | 0.014 | 0.066 |
| F3–F4 | 5.68 ± 23.80 | 4.83 ± 23.05 | 3.39 ± 22.04 | 0.132 | 0.877 | 0.002 |
| F7–F8‡ | 26.17 ± 13.02 | 16.97 ± 17.18 | 10.65 ± 21.82 | 9.059*** | < 0.001 | 0.127 |
Values are presented as mean ± standard deviation or number (%).
ANOVA, analysis of variance; FAA, frontal alpha asymmetry; MDD, major depressive disorder; HC, healty control; SI, suicidal ideation; HAM-A, Hamilton Rating Scale for Anxiety; HAM-D, Hamilton Rating Scale for Depression.
a
By chi-square test;
*
p < 0.05,
***
p < 0.001.
Following least significant difference post-hoc analysis:
†
MDD patients with SI > HC (p = 0.23),
‡
MDD patients without SI > HC (p < 0.001).