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Table 3 Paired t-test results for change in diet quality scores from baseline to 12-weeks within study groups of overweight/obese adults (n = 289) randomized to a wait-list control, basic or enhanced version of a commercial web-based weight loss intervention

From: Participants in an online weight loss program can improve diet quality during weight loss: a randomized controlled trial

  Control n = 97 Basic n = 94 Enhanced n = 98
Variable Mean t-ratio Mean t-ratio Mean t-ratio
Total ARFSa 0.06 0.09 0.23 0.41 2.21 3.88***
Vegetable -0.22 -0.57 0.03 0.13 0.48 1.75
Fruit -0.09 -0.41 0.13 0.68 0.58 2.45*
Meat 0.29 2.46* 0.23 1.99* 0.47 4.32***
Vegetarian Altb -0.06 -0.54 -0.01 -0.11 0.01 0.10
Wholegrain -0.11 -0.65 0.03 0.22 0.34 2.30*
Dairy 0.12 0.82 -0.11 -0.68 0.23 1.69
Water 0.12 2.77** 0.14 3.32** 0.18 3.94***
Condiments 0.01 0.15 -0.15 -2.46* -0.06 -0.86
  1. aARFS = Australian Recommended Food Score.
  2. bVegetarian Alt = Vegetarian Alternatives.
  3. *Statistically significantly difference in baseline and 12-week value within groups P < 0.05.
  4. **Statistically significantly difference in baseline and 12-week value within groups P < 0.01.
  5. ***Statistically significantly difference in baseline and 12-week value within groups P < 0.001.