Baseline characteristics of usual care, guided Web-based rumination-focused cognitive behavioral therapy (i-RFCBT), and unguided i-RFCBT intention-to-treat samples.
| Baseline characteristics | Usual care (n=77) | Guided i-RFCBTa (n=82) | Unguided i-RFCBT (n=76) |
| Sex (female), n (%) | 64 (83) | 68 (83) | 64 (84) |
| Age (years), mean (SD) | 20.27 (1.55) | 20.43 (1.65) | 20.53 (1.30) |
| Ethnicity (white), n (%) | 70 (91) | 77 (94) | 67 (88) |
| English mother tongue, n (%) | 71 (92) | 75 (91) | 64 (84) |
| Previous major depressive episode (yes), n (%) | 29 (38) | 34 (41) | 29 (38) |
| Received previous mental health treatment (yes), n (%) | 38 (49) | 38 (46) | 31 (41) |
| Family history of depression (yes), n (%) | 39 (51) | 42 (51) | 33 (43) |
| Parent with history of depression (yes), n (%) | 34 (44) | 34 (41) | 29 (38) |
| Reported history of sexual abuse (yes), n (%) | 7 (9) | 5 (6) | 5 (7) |
| Reported history of physical abuse (yes), n (%) | 7 (9) | 1 (1) | 7 (9) |
| Reported history of emotional abuse (yes), n (%) | 17 (22) | 10 (12) | 11 (14) |
| Patient Health Questionnaire-9, mean (SD) | 5.6 (4.1) | 5.6 (3.2) | 5.4 (3.6) |
| Generalized Anxiety Disorder Screener-7, mean (SD) | 6.6 (4.3) | 7.3 (4.2) | 7.1(4.0) |
| Penn State Worry Questionnaire, mean (SD) | 61.9 (9.0) | 62.0 (9.5) | 60.3 (10.5) |
| Ruminative Response Scale, mean (SD) | 47.9 (11.1) | 49.8 (10.6) | 47.2 (10.7) |
| Stressful events in the past 3 months, mean (SD) | 3.6 (2.3) | 3.8 (2.4) | 3.4 (1.8) |
| Subjective rating of worst event, mean (SD) | 2.20 (1.11) | 2.57 (0.96) | 2.53 (0.92) |
ai-RFCBT: Web-based rumination-focused cognitive behavioral therapy.