Table 1.
Demographic differences across diagnostic groups
| Control (N=91) | Dep/NS (N = 53) | Dep/SI (N = 21) | Test Statistic | p value | |
|---|---|---|---|---|---|
|
| |||||
| Age (years) | 29.9 (9.1) | 37.5 (8.9) | 33.5 (9.1) | F2,162 = 11.95 | < 0.0001 |
|
| |||||
| Sex, Female | 61.5% (56) | 77.3% (41) | 52.4% (11) | X2 = 5.53, 2df | 0.0631 |
|
| |||||
| Education (years) | 15.8 (2.0) | 15.3 (2.4) | 15.3 (2.7) | F2,162 = 0.89 | 0.4113 |
|
| |||||
| Race | Fisher’s exact | 0.4117 | |||
| • African-Am | 35.2% (32) | 26.4% (14) | 14.3% (3) | ||
| • White | 50.5% (46) | 54.6% (29) | 66.6% (14) | ||
| • Asian | 9.9% (9) | 7.6% (4) | 9.5% (2) | ||
| • Native Am | 0% (0) | 3.8% (2) | 4.8% (1) | ||
| • Multiracial | 4.4% (4) | 7.6% (4) | 4.8% (1) | ||
|
| |||||
| MADRS | 0.8 (1.1) | 23.3 (4.5) | 24.7 (4.2) | F2,162 = 1137.1 | < 0.0001 |
|
| |||||
| Intracranial Volume (ml) | 1158.8 (181.2) | 1179.7 (196.0) | 1236.9 (243.0) | F2,162 = 1.34 | 0.2654 |
Data presented as mean (standard deviation) for continuous variables or percentage (N) for categorical variables.