Study Measures for Subjects Who Completed 12 Weeks of Health Coaching
| Assessment | Baseline | 12 Weeks | P Value* |
|---|---|---|---|
| Body mass index (kg/m2) | 34.1 (7.0) | 33.4 (7.0) | .014 |
| Waist circumference (cm) | 104 (16) | 100 (16) | <.001 |
| Systolic blood pressure (mm) | 116 (10) | 115 (9) | .385 |
| Diastolic blood pressure (mm) | 70 (8) | 66 (8) | .031 |
| Fruits, vegetables, and beans (½-cup servings/day) | 5.1 (3.8) | 5.8 (3.9) | .291 |
| Sugary beverages (12-oz servings/day) | 0.35 (0.51) | 0.17 (0.31) | .039 |
| Total physical activity (min/week) | 340 (292) | 476 (388) | .007 |
| Moderate or strenuous physical activity (min/week) | 123 (124) | 207 (263) | .061 |
| Sleep score | 17.2 (3.5) | 15.9 (3.9) | .016 |
| Stress score† | 18.3 (7.6) | 16.8 (8.3) | .229 |
| Fatigue score‡ | 22.7 (7.8) | 20.9 (7.8) | .096 |
| Confidence to carry out physical activity§ | 6.8 (1.6) | 7.7 (1.7) | .002 |
| Confidence for improving diet§ | 7.3 (1.4) | 7.2 (2.0) | .756 |
Data are mean (standard deviation) for 33 subjects who completed measures at both baseline and 12 weeks. The data include all subjects, regardless of coaching goal. Of the 33 subjects with completed 12-week data, 32 subjects received coaching that included a physical activity goal, 26 subjects with a diet goal, and 7 subjects with a better sleep goal.
↵* P values for differences over time are from paired t tests for subjects who completed 12 weeks of health coaching. A total of 33 subjects had paired anthropometric measures, and 32 subjects had paired questionnaire data. Physical activity, diet, and sleep were assessed using the methods described in Table 2.
↵† Stress was assessed using the 10-item Perceived Stress Scale developed by Cohen et al.28
↵‡ Fatigue was assessed using the Neuor-QOL Item Bank 1.0 Fatigue Short Form (8 items) from the Patient-Reported Outcomes Measurement Information System (PROMIS) health organization.26
↵§ Confidence for carrying out the indicated health behaviors was assessed using a study-specific questionnaire of 2 items that were answered on a 5-point scale (see the Methods).