Characteristics of Study Participants (N=165)
| Characteristic | Value |
|---|---|
| CIRS = Cumulative Illness Rating Scale (possible scores: 0–56, higher scores indicate more severe illness); HAM-D17 = 17-item Hamilton Rating Scale for Depression (possible total scores: 0–52, higher total scores indicate more severe depression); IQR = interquartile range. | |
| Sex (female), % | 57.5 |
| Age, years, mean±SD | 34.2±10.5 |
| Race, % | |
| White | 78.0 |
| African American | 11.7 |
| Asian | 2.6 |
| American Indian or Alaskan Native | 1.0 |
| Native Hawaiian or Pacific Islander | 1.6 |
| Other or unspecified | 5.1 |
| Ethnicity (Hispanic), % | 4.6 |
| Education, years, mean±SD | 15.1±3.4 |
| Private health insurance, % | 77 |
| Number of nonpsychiatric comorbid conditions, mean ± SD | 1.4±1.5 |
| Severity of illness, CIRS score, mean ± SD | 1.07 ± 0.50 |
| Depression characteristics | |
| Symptom severity (HAM-D17 total score), mean±SD | 20.7±4.0 |
| Duration of current episode, months, median (IQR) | 16 (8–34) |
| Number of prior episodes, median (IQR) | 3 (2–6) |
| Age of onset for first episode, years, median (IQR) | 20 (15–30) |
| Axis I comorbidity, % | 57.7 |
| Prior antidepressant use, % | 34.1 |
| Depression in first-degree relative(s), % | 51.1 |