Table 3.
Differences in days/week of self-monitoring, BMI, dietary variables, and Eating Behavior Inventory score by diet self-monitoring methods at 6 months
| Dietary monitoring | Mobile diet app | Paper journal | Web site | Overall model significance level | p Value for type of monitoring method* |
|---|---|---|---|---|---|
| n | 37 | 17 | 24 | ||
| Mean day/week of diet self-monitoring | 3.4±0.8 | 1.6±0.7 | 2.1±0.8 | F (11,77)=2.83; p=0.63 | F (11,77)=2.83; p=0.14 |
| Energy intake, kcal | 1437±188† | 2049±175 | 1834±185 | F (12,76)=4.71; p<0.001 | F (12,76)=3.89; p=0.03 |
| Fat, % kcal | 34.6±2.7 | 35.3±2.5 | 31.7±2.6 | F (12,76)=2.25; p=0.02 | F (12,76)=0.72; p=0.49 |
| Added sugar, tsp/day | 5.8±2.9 | 10.2±2.6 | 9.2±2.8 | F (12,76)=2.73; p=0.005 | F (12,76)=0.95; p=0.39 |
| Fruit, cups/day | 1.4±0.3 | 1.6±0.3 | 1.1±0.3 | F (12,76)=1.47; p=0.16 | F (12,76)=0.77; p=0.47 |
| Vegetables, cups/day | 2.2±0.4 | 2.6±0.3 | 2.4±0.4 | F (12,76)=2.87; p=0.003 | F (12,76)=0.41; p=0.67 |
| Eating Behavior Inventory score | 90.8±4.7 | 84.9±4.3 | 84.4±4.6 | F (12,77)=3.22; p=0.001 | F (12,77)=0.81; p=0.45 |
| Body mass index, kg/m2 | 31.0±0.8 | 32.5±0.7 | 32.3±0.8 | F (12,77)=36.36; p<0.001 | F (12,77)=1.64; p=0.20 |
Data are mean±SE.
*p Value is for differences among the three different diet monitoring types using univariate general linear models for 6-month outcomes. All models were adjusted for the baseline value of the examined 6-month outcome, age, race, gender, education, original randomized group (Podcast vs Podcast+Mobile), and interaction terms for monitoring method and race, and monitoring method and gender.
†Significantly different from the paper journal group (p<0.05).
BMI, body mass index; tsp, teaspoon.