Table 2.

Effect of change in AHEI (per 10-point increase) on weight change (kg) from baseline to year 1 among participants of the Diabetes Prevention Program (n = 2914)

	N	Beta Coefficient	Standard Error	p-value
Model 1: All participantsa,b	2914	−0.991	0.133	<.0001
Model 2: All participantsa,b	2914	−0.890	0.133	<.0001
Model 3: All participants a,b	2914	−0.512	0.155	0.001
Stratified Models (Model 2)
Treatment group (p-interaction = 0.083)
Lifestyle b	964	−1.232	0.278	<.0001
Metforminb	977	−0.896	0.194	<.0001
Placebob	973	−0.547	0.201	0.007
Racial/ethnic group (p-interaction = 0.020)
Caucasiana	1614	−1.128	0.191	<.0001
African Americana	564	−0.363	0.293	0.216
Hispanica	460	−0.852	0.287	0.003
American Indiana	154	−0.901	0.631	0.155
Asiana	122	+ 0.494	0.461	0.286

Model 1: Linear regression models adjusted for baseline values of AHEI, age, sex, BMI, MET hours per week, total energy intake as well as change from baseline to year one of MET hours per week and total energy intake

Model 2: Linear regression models adjusted for Model 1 covariates as well as baseline values of education, smoking status, family history of diabetes, alcohol use

Model 3: Also adjusted for baseline values of dietary fiber, carbohydrate, total fat and saturated fat at baseline and change to year 1 of each

^aAlso adjusted for treatment group

^bAlso adjusted for race/ethnicity