Table 1.
Project Take HEED results at various time pointsa
| Measure | T0 (controls: n = 103, experimental: n = 120) | T1 (controls: n = 45, experimental: n = 63) | T4 (controls: n = 37, experimental: n = 36) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fruit and veggie SE | Exercise efficacy barriers | WEL total | BMI (kg/m2) | Fruit and veggie SE | Exercise efficacy barriers | WEL total | BMI (kg/m2) | Fruit and veggie SE | Exercise efficacy barriers | WEL total | BMI (kg/m2) | |
| Controls, mean | NA | NA | 6.15 | 37.25 | 2.11 | 45.03 | 6.06 | 37.55 | 2.33 | 41.51 | 5.72 | NA |
| Experimental group, mean | 2.24 | NA | 6.03 | 38.06 | 2.19 | 50.12 | 6.41 | 38.53 | 2.13 | 49.12 | 6.63 | 38.16 |
| t test | 0.5 | 1.18 | 1.15 | 0.9 | 1.15 | 2.59 | ||||||
| p value | 0.62 | 0.24 | 0.26 | 0.37 | 0.13 | 0.01 | ||||||
In the Take HEED study, a mix of validated self-efficacy measures was used, with results noted at baseline (T0), 7 months (T1), and 15 months (T4). Body mass index (BMI) measures were inconclusive and not statistically significant. On the 3 scales used, Self-Efficacy for Fruit and Vegetable Intake Survey (Fruit and veggie SE), the Barriers to Exercise Self-Efficacy Scale (Exercise efficacy barriers), and the Weight Efficacy Lifestyle (WEL) Questionnaire, the remaining participants at T4 had scored initially lower than those “high-confidence” participants, who later dropped out in large numbers.
BMI = body mass index; HEED = Healthy Eating and Exercise Decisions: NA = not applicable; SE = self-efficacy; WEL = weight efficacy lifestyle.