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. Author manuscript; available in PMC: 2017 Aug 1.
Published in final edited form as: Int J Eat Disord. 2016 Mar 10;49(8):801–804. doi: 10.1002/eat.22525

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.