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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)

From: Diet quality, weight loss, and diabetes incidence in the Diabetes Prevention Program (DPP)

 

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

  1. 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
  2. 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
  3. 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
  4. aAlso adjusted for treatment group
  5. bAlso adjusted for race/ethnicity