Table 3.

Comparison of Body Weight and Dieting Among Eating Groups ^a,^b

	FA-Only (n=76) M (SD)	BED/BN-Only (n=68) M (SD)	BN&FA (n=61) M (SD)	BED&FA (n=50) M (SD)	Neither FA or BED/BN (N=388) M (SD)	Test Statistic (F or χ2)	P Value c	Pairwise Diff.	Effect Size (η2)
BMI	32.96 (11.23)	27.96 (6.32)	28.34 (9.31)	32.73 (SD=10.11)	27.57 (SD=8.12)	8.95	<.001	1,4>2; 1>3; 1,4>5	.05
Highest BMI	35.43 (12.50)	30.71 (7.12)	31.69 (9.99)	34.80 (11.12)	29.83 (8.99)	7.37	<.001	1>2; 1,4>5	.04
Age 1st Overweight	16.88 (16.40)	17.33 (7.97)	14.98 (7.33)	18.49 (11.24)	18.36 (10.64)	1.08	.366		.01
Age 1st Dieting	19.72 (6.17)	21.43 (8.08)	17.22 (4.70)	22.05 (7.90)	22.61 (9.15)	4.82	<.001	3<5	.04
Time Spent Dieting	48 (61.8%)	37 (54.4%)	47 (78.7%)	40 (81.6%)	144 (37.1%)	70.01	<.001	1,2,3,4>5; 3,4>1,2	.33d
Currently Dieting	432 (55.3%)	38 (55.9%)	39 (64.0%)	29 (58.0%)	152 (39.4%)	22.68	<.001	1,2,3,4>5	.19
Weight Cycling	57 (75.0%)	49 (72.0%)	51 (83.6%)	38 (76.0%)	192 (49.5%)	48.25	<.001	1,2,3,4>5	.27

^aFA= Food Addiction, BED = Binge Eating Disorder, BN= bulimia nervosa

^bWeight Cycling = 20 pounds lost and regained one or more times, Time Spent Dieting = since the age of 18, been dieting at least half of the time

^c1=FA-Only, 2= BED/BN-Only, 3=BN&FA, 4= BED&FA, 5=Neither FA or BED/BN, all reported pairwise differences p < .05

^dCramer’s Phi used as effect size statistic for chi-square analyses (Time Spent Dieting, Currently Dieting)