Characteristic | Group; mean ± SD or no. (%)* | Statistic | p value | |
---|---|---|---|---|
MDD, n = 116 | Control, n = 116 | |||
Age, yr | 36.5 ± 11.6 | 33.7 ± 10.5 | t = 1.95 | 0.05 |
MDD history, yr | 19.5± 13.0 | — | ||
Current MDE duration, mo | 25.9 ± 56.6 | — | ||
Total no. MDEs, median [IQR] | 6.5 [3–10] | — | ||
Male sex | 25 (21.6) | 32 (27.6) | χ2 = 1.14 | 0.29 |
Current psychotropic medication use | 39 (33.6) | 0 (0) | χ2 = 45.06 | < 0.001 |
GAF score | 54.4 ± 7.8 | 87.3 ± 5.9 | t = 8.36 | 0.004 |
BDI scores at scan | 30.9 ± 9.2 | 2.2 ± 3.4 | t = −30.30 | < 0.001 |
Annual Income | Rank sum = 8728.50 | 0.003 | ||
< $10 000 | 22 (19.0) | 5 (4.3) | ||
$10 000–$25 000 | 17 (14.7) | 11 (9.5) | ||
$25 000–$50 000 | 18 (15.6) | 15 (12.9) | ||
$50 000–$75 000 | 11 (9.5) | 24 (20.7) | ||
$75 000–$100 000 | 12 (10.3) | 12 (10.3) | ||
> $100 000 | 15 (12.9) | 18 (15.5) | ||
Unknown/decline to state | 21 (18.1) | 31 (26.7) | ||
Highest level of education | Rank sum = 13 198.0 | 0.86 | ||
High school | 7 (6.0) | 2 (1.7) | ||
Some college | 20 (17.2) | 27 (23.3) | ||
Tech school | 0 (0) | 3 (2.6) | ||
Junior college | 14 (12.1) | 5 (4.3) | ||
Four-year college | 45 (38.8) | 49 (42.2) | ||
Graduate or professional degree | 29 (25.0) | 28 (24.1) | ||
Unknown/decline to state | 1 (0.9) | 2 (1.7) |
BDI = Beck Depression Inventory; GAF = Global Assessment of Functioning; IQR = interquartile range; MDD = major depressive disorder; MDE = major depressive episode; SD = standard deviation.
↵* Unless indicated otherwise.