Table 4.

Coefficient of determination (R²) from hierarchical regression models predicting general health-related quality of life (SF-36) from demographic and physical factors, binge eating disorder (BED), and food addiction

	Model 1	Model 2	Model 3a	Model 3b
Physical component	0.128*	0.162*	0.196*	0.265**
Mental component	0.060	0.114*	0.130	0.262**
Physical functioning	0.188**	0.244*	0.274*	0.333**
Role physical	0.029	0.087*	0.124*	0.216**
Bodily pain	0.109*	0.163*	0.178	0.228**
General health	0.089*	0.091	0.097	0.181**
Vitality	0.058	0.071	0.095*	0.234**
Social functioning	0.033	0.063	0.116*	0.208**
Role emotional	0.066	0.146*	0.149	0.267**
Mental health	0.059	0.124*	0.155*	0.253**

Note. Model 1 included age, race, sex, BMI, and comorbidities. Model 2 included Model 1 variables and subclinical/clinical diagnosis of BED. Model 3a included Model 2 variables and meeting criteria for food addiction or not. Model 3b included Model 2 variables and the number of endorsed food addiction symptoms.

Asterisks indicate p-values for R² change value with p<0.05; p<0.001.