Table 1. Subject Characteristics.
| Individuals with major depressive disorder (N=17) | Healthy comparison participants (N=20) | Statistical tests (significance) | |
|---|---|---|---|
| Sex (M/F) | 5/12 | 8/12 | (0.73)a |
| Age | 34.4±12.2 | 32.6±12.4 | t=0.44 (0.66) |
| Handedness (R/L) | 14/3 | 14/6 | (0.46)a |
| Education (grades completed) | 14.2±1.5 | 16.0±1.7 | t=3.2 (p<0.01) |
| Current smoking (Y/N) | 2/15 | 4/16 | (0.67)a |
| Head motion | 0.06±0.02 | 0.05±0.03 | t=1.1 (0.27) |
| MADRS | 24.1±7.9 | NA | NA |
| HAMD 1st 17 | 16.0±6.2 | NA | NA |
| Years of diagnosis | 10.2±9.9 | NA | NA |
| Length of current episode in months | 11.2±14.6 | NA | NA |
a
Fisher’s exact test, no test statistic.