Table 1.
Baseline Measures Across Centers and Treatments
| Characteristic | Mean (SD) by Center and Treatment
|
||||||||
|---|---|---|---|---|---|---|---|---|---|
| Rutgers University
|
Washington University–St Louis IPT
|
Total
|
|||||||
| BWL (n=32) | CBTgsh (n=31) | IPT (n=37) | BWL (n=32) | CBTgsh(n=35) | IPT (n=38) | BWL (n=64) | CBTgsh (n=66) | IPT (n=75) | |
| Age, y | 43.9 (11.2) | 50.0 (14.8) | 47.9 (12.0) | 48.5 (10.3) | 50.7 (12.6) | 49.5 (10.3) | 46.2 (10.9) | 50.3 (13.6) | 48.7 (11.2) |
| Age range, y | 19–64 | 19–77 | 23–66 | 26–69 | 26–76 | 30–68 | 19–69 | 19–77 | 23–68 |
| BMI | 35.5 (5.9) | 36.6 (4.6) | 35.4 (5.2) | 38.1 (4.9) | 35.8 (4.1) | 37.2 (5.0) | 36.8 (5.5) | 36.2 (4.3) | 36.3 (5.1) |
| Binge days, median (IQR) | 20 (13–30) | 20 (12–31) | 15 (10–25) | 16 (13–22) | 16 (10–22) | 18 (12–23) | 20 (13–27) | 18 (11–27) | 16 (11–24) |
| Global EDE score | 3.0 (0.8) | 2.9 (0.9) | 2.8 (0.7) | 2.7 (0.8) | 2.6 (0.7) | 2.8 (0.8) | 2.8 (0.8) | 2.7 (0.8) | 2.8 (0.7) |
| BDI score >18, % | 47 | 42 | 46 | 41 | 46 | 42 | 44 | 44 | 44 |
| Rosenberg Self-Esteem Scale score | 24.3 (6.5) | 22.1 (5.9) | 23.9 (5.4) | 22.4 (5.7) | 23.4 (5.6) | 23.5 (5.5) | 23.4 (6.2) | 22.8 (5.3) | 23.7 (5.4) |
| Quality of life score | 0.64 (0.12) | 0.66 (0.09) | 0.64 (0.13) | 0.68 (0.15) | 0.68 (0.12) | 0.67 (0.12) | 0.66 (0.13) | 0.67 (0.11) | 0.66 (0.12) |
| Personality disorder, % | 31 | 12 | 24 | 22 | 26 | 21 | 27 | 20 | 23 |
| Current depression, % | 6 | 6 | 19 | 19 | 23 | 13 | 13 | 15 | 16 |
| History of depression, % | 37 | 27 | 42 | 56 | 46 | 53 | 47 | 37 | 47 |
| Substance abuse, % | 19 | 10 | 8 | 3 | 11 | 3 | 11 | 11 | 5 |
| Ethnicity, % | |||||||||
| American Indian | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 1 |
| Black | 9 | 6 | 5 | 12 | 14 | 29 | 11 | 11 | 17 |
| White | 91 | 77 | 84 | 84 | 86 | 71 | 88 | 82 | 77 |
| Hispanic | 0 | 16 | 8 | 3 | 0 | 0 | 2 | 8 | 4 |
| College degree, % | 31 | 39 | 24 | 37 | 34 | 37 | 34 | 38 | 30 |
| Male sex, % | 13 | 19 | 16 | 9 | 17 | 13 | 11 | 18 | 15 |
Abbreviations: BDI, Beck Depression Inventory; BMI, body mass index (calculated as weight in kilograms divided by height in meters squared); BWL, behavioral weight loss treatment; CBTgsh, guided self-help based on cognitive behavior therapy; EDE, Eating Disorder Examination; IPT, interpersonal psychotherapy; IQR, interquartile range.