Table 4.

Estimated mean change (± standard error) in behavioral outcomes from baseline to week 12 and week 26

Variable	BWL+BIAS (n=36)	BWL (n=36)	Mean Difference	p	d
WEL-SF
Week 12	11.3±3.1***	10.2±3.1***	1.1±4.4	0.80	0.05
Week 26	12.0±3.1***	8.9±3.1**	3.1±4.4	0.49	0.14
SEE
Week 12	4.0±4.6	−5.7±4.5	9.7±6.5	0.14	0.28
Week 26	5.8±4.6	−6.3±4.5	12.1±6.5	0.06	0.35
Eating Inventory
Dietary Restraint
Week 12	6.3±0.7***	5.9±0.7***	0.4±1.0	0.69	0.11
Week 26	6.4±0.8***	5.2±0.8***	1.2±1.1	0.29	0.21
Disinhibition
Week 12	−2.8±0.6***	−1.9±0.6**	0.9±0.8	0.28	0.27
Week 26	−3.0±0.6***	−2.2±0.6**	−0.8±0.8	0.34	0.20
Hunger
Week 12	−3.2±0.5***	−1.4±0.5*	−1.8±0.8	0.02	0.48
Week 26	−3.9±0.5***	−1.4±0.5*	−2.5±0.8	0.001	0.66
Days of Food Records
Week 12	52.9±3.4***	55.5±3.4***	2.6±4.8	0.59	0.11
Week 26	85.6±9.5***	95.8±9.2***	−10.2±13.1	0.44	0.20
Self-Reported Weighing
Week 12	0.9±0.2***	1.1±0.2***	−0.2±0.3	0.46	0.16
Week 26	1.0±0.2***	0.6±0.2**	0.4±0.3	0.23	0.25
Track Food/Drink+
Week 12	2.7±0.3***	2.0±0.3***	0.7±0.4	0.12	0.38
Week 26	1.6±0.3***	1.6±0.3***	0.1±0.4	0.90	0.03
Track Calories+
Week 12	2.0±0.3***	1.7±0.3***	0.3±0.4	0.42	0.20
Week 26	1.7±0.3***	1.4±0.3***	0.3±0.5	0.36	0.18
Track Activity+
Week 12	1.6±0.3***	0.8±0.3**	0.8±0.4	0.03	0.56
Week 26	1.3±0.3***	0.9±0.3**	0.5±0.4	0.29	0.21

Note. WEL-SF=Weight Efficacy Lifestyle Questionnaire-Short Form; SEE=Self-Efficacy to Exercise Scale.

⁺Track Food/Drink and Activity scores underwent logarithmic transformation to fit assumptions of normality, and Track Calories scores were transformed with the square root; statistics for these variables are from linear mixed models, and raw change values are shown. Asterisks indicate significance of within group changes from baseline to time point. Significant between-group differences are highlighted in bold.

^***p≤0.001

^**p≤0.01

^*p<0.05