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. 2011 Jun 8;141(8):1469–1474. doi: 10.3945/jn.111.140921

TABLE 3.

Relationship of glycemic index (GI) with weight loss after a 22-wk dietary intervention comparing a low-fat vegan diet to diets following the recommendations of the American Diabetes Association (ADA), as determined by linear regression analysis (n = 99)

Variable Unstandardized B SE (B) t P
Model F (11, 95) = 3.43, R2 = 0.31 0.001
Gender 1.40 0.87 1.61 0.11
Ethnicity, white vs. non-white −2.45 0.89 −2.75 0.01
Age, y 0.03 0.05 0.62 0.54
Diet group assignment, vegan vs. ADA diet −0.98 1.14 −0.86 0.39
Changes in energy intake,12kcal/d 0.001 0.01 0.25 0.80
Changes in GI1 0.19 0.05 3.48 0.001
Changes in carbohydrate,1g/d −0.01 0.02 −0.37 0.71
Changes in total fat,1g/d −0.01 0.06 −0.19 0.85
Changes in fiber,1g/d 0.02 0.04 0.35 0.73
Changes in alcohol intake,1 g/d 0.04 0.09 0.44 0.66
Changes in physical activity,3steps/d 0.0001 0.0001 −2.35 0.02
1

All dietary variables in the model are changes in intake from baseline to 22 wk (22 wk intake – baseline intake).

2

1 kcal = 4.184 kJ.

3

Physical activity (assessed using a pedometer) in the model is change in mean steps per day from baseline to 22 wk (22 wk mean steps per day –baseline mean steps per day).