Table 1.
Participant demographic and psychosocial characteristics by group, M±SD unless otherwise specified
| Full sample (n=245) |
BN (n=128) |
AN-B/P (n=38) |
PD-LOC (n=23) |
PD-noLOC (n=56) |
Test results | ||
|---|---|---|---|---|---|---|---|
| Demographic and anthropometric factors | |||||||
|
| |||||||
| Age, years | 16.2±1.5 | 16.4±1.4a | 15.6±1.8b | 15.3±1.9 ab | 16.2±1.4ab | F(3,244)=5.75; p=.001 | |
| Female, n (%) | 230 (94.3) | 122 (96.1) | 37 (97.4) | 20 (87.0) | 51 (91.1) | χ2(3, N=244)=4.76; p=.19 | |
| % expected body weight | 105.99±23.77 | 114.22±25.62a | 78.18±4.76b | 105.83±14.97a | 106.27±13.52a | F(3,241)=30.72; p<.001 | |
| Non-Hispanic White |
168 (69.1) | 79 (62.7) | 33 (86.8) | 16 (69.6) | 40 (71.4) | ||
| Race/ethnicity, n (%) |
Non-White, mixed race, and/or Hispanic |
75 (30.9) |
47 (37.3) |
5 (13.2) |
7 (30.4) |
16 (28.6) |
χ2(3, N=243)=8.17; p=.04 |
|
| |||||||
| Psychosocial factors | |||||||
|
| |||||||
| EDE Restraint | 3.4±1.6 | 3.4±1.6 | 3.5±1.5 | 2.7±1.7 | 3.5±1.4 |
F(3,233)=1.95; p=.12; partial eta squared=.02 |
|
| EDE Shape Concern | 3.8±1.5 | 4.1±1.5 | 3.1±1.6 | 3.5±1.3 | 3.7±1.4 |
F(3,233)=2.19; p=.09; partial eta squared=.03 |
|
| EDE Weight Concern | 3.5±1.5 | 3.8±1.6 | 2.8±1.5 | 3.3±1.3 | 3.6±1.4 |
F(3,233)=1.95; p=.12; partial eta squared=.02 |
|
| EDE Eating Concern | 2.6±1.4 | 3.1±1.4a | 2.0±1.2b | 2.2±1.5ab | 2.2±1.1b |
F(3,233)=7.53; p<.001; partial eta squared=.09 |
|
| BDI Total Score | 22.8±11.5 | 23.7±11.3 | 20.4±11.5 | 20.9±11.4 | 23.1±12.2 |
F(3,233)=.77; p=.51; partial eta squared=.01 |
|
| RSE Total Score | 16.3±7.7 | 16.1±7.9b | 14.4±6.1b | 24.9±6.7a | 14.1±6.2b |
F(3,209)=12.45; p<.001; partial eta squared=.15 |
|
Note: BN=bulimia nervosa; AN-B/P=anorexia nervosa, binge/purge subtype; PD-LOC=purging disorder with loss of control eating; PD-noLOC=purging disorder without loss of control eating; EDE=Eating Disorder Examination (range=0-6; higher scores indicate greater eating-related psychopathology); BDI=Beck Depression Inventory (range=0-63; higher scores indicate higher depressive symptoms); RSE=Rosenberg Self-Esteem Scale (range=0-30; higher scores indicate higher self-esteem). Differing superscript letters indicate significant differences at p<.05. All analyses adjust for age, % expected body weight, and race/ethnicity.