Table 1 Demographic and clinical characteristics
|  | HC (n = 43) | OB (n = 25) | OBED (n = 19) | F/Welch/χ2 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 | – |