Skip to main content

Table 1 Demographic and clinical characteristics

From: Relating goal-directed behaviour to grazing in persons with obesity with and without eating disorder features

  HC (n = 43) OB (n = 25) OBED (n = 19) F/Welch2 statistic Pairwise comparison
n%; M(SD) n%; M(SD) n%; M(SD)
Source of recruitment (community/university) 41 (95.3) / 2 (4.7) 21 (84.0) / 4 (16.0) 17 (89.5) / 2 (10.5) 2.68
Age (years) 27.81 (7.53) 30.17 (10.82) 28.20 (8.25) 0.60
Sex (female/male/other) 32 (74.4) / 11 (25.6) / 0 (0.0) 13 (52.0) / 12 (48.0) / 0 (0) 14 (73.7) / 5 (26.3) / 0 (0.0) 4.02
Ethnicity (Caucasian/Asian/other) 24 (55.8) / 17 (39.5) / 2 (4.7) 14 (56.0) / 10 (40.0) / 1 (4.0) 13 (68.4) / 4 (21.1) / 2 (10.5) 2.83
Income (AUD$1000) 61.56 (14.72) 57.29 (10.28) 61.71 (13.65) 0.93
Country of birth (Australia/other) 20 (46.5) / 23 (53.5) 13 (52.0) / 12 (48.0) 15 (78.9) / 4 (21.1) 5.75
Marital (married or in relationship) 28 (65.1) 9 (36.0) 10 (52.6) 5.42
Education (years) 16.80 (2.31) 16.80 (2.76) 15.29 (1.85) 3.84
BMI (kg/m2) 22.31 (2.07) 33.98 (3.11) 38.44 (5.73) 188.79*** OBED > OB > HC
Obesity onset (child/adolescent/adult) 6 (24.0) / 9 (36.0) / 10 (45.5) 2 (10.5) / 5 (26.3) / 12 (63.2) 2.55
Alcohol (std. drinks/week) 2.17 (3.21) 2.42 (3.10) 1.91 (3.23) 0.14
Smoking (never/past/current) 40 (93.0) / 1 (2.3) / 2 (4.7) 21 (84.0) / 0 (0.0) / 4 (16.0) 14 (73.7) / 1 (5.3) / 4 (21.1) 5.60
Cholesterol medication 0 (0.0) 1 (4.0) 0 (0.0) 2.51
Blood pressure medication 0 (0.0) 1 (4.0) 0 (0.0) 2.51
Antidepressant medication 1 (2.3) 1 (4.0) 3 (15.8) 4.61
Trying to lose weight 4 (9.3) 19 (76.0) 16 (84.2) 43.68*** OB/OBED > HC
Physical activity (< 1 h/1-5 h/> 5 h per week) 6 (14.0) / 24 (55.8) / 13 (30.2) 5 (20.0) / 17 (68.0) / 3 (12.0) 3 (15.8) / 14 (73.7) / 2 (10.5) 4.91
TOPF 111.33 (11.02) 110.48 (12.02) 111.47 (13.80) 0.05
EDE-Q Global Score 0.68 (0.65) 1.75 (0.82) 3.40 (0.72) 94.91*** OBED > OB > HC
Objective binge episodes 0.72 (3.14) 1.36 (2.45) 14.16 (21.46) 3.90* OBED > HC/OB
Compensatory behaviour presence 7 (16.3) 9 (36.0) 9 (47.4) 7.12* OBED > HC
Purging behaviour presence 0 (0.0%) 0 (0.0%) 2 (10.5%) a 7.33* OBED> HC/OB
Depression (DASS-21; 0–21) 2.09 (3.58) 1.96 (2.13) 6.79 (5.05) 7.74** OBED > HC/OB
Grazing (GQ; 0–28) 7.35 (4.60) 11.52 (4.98) 15.74 (5.48) 20.21*** OBED > OB > HC
Grazing-repetitive eating (0–16) 5.19 (3.23) 7.04 (3.26) 8.58 (3.34) 7.68*** OBED > HC
Grazing-loss of control (0–12) 2.16 (2.10) 4.48 (2.29) 7.16 (2.43) 34.09*** OBED > OB > HC
Hunger (1–10) 4.33 (2.41) 4.56 (2.29) 5.05 (2.37) 0.62
  1. Note: * p < .05. ** p < .01. *** p < .001 a The frequency of purging behaviour was lower than that specified in DSM-5 as criteria for purging bulimia nervosa