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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