Table 3 Mean changes in weight and secondary outcomes from 12 (post-intervention) to 24 months pooled across groups
Mean at baseline | Mean at post-intervention (12 months) | Mean at follow-up (24 months) | Pooled Estimates (Change from 12 months to 24 months) | ||||||
|---|---|---|---|---|---|---|---|---|---|
Mean change (SE) | z | p | 95% CI | R2 – Standard GLB | R2 – Enriched GLB | ||||
Primary outcome | |||||||||
Weight (lbs.) | 204.03 | 183.67 | 191.52 | 7.85 (3.96) | 1.98 | .047* | 0.09, 15.61 | 0.02 | 0.02 |
Diabetes risk factors | |||||||||
Waist circumference (cm) | 108.79 | 101.25 | 101.57 | 0.32 (1.87) | 0.17 | .863 | −3.34, 3.98 | 0.00 | 0.00 |
Physical activity | |||||||||
Physical activity total duration (min/week) | 98.79 | 220.89 | 256.37 | 35.48 (45.37) | 0.78 | .434 | −53.44, 124.40 | 0.01 | 0.00 |
Physical activity pedometer steps (per day) | 7403.26 | 8740.25 | 8190.29 | −549.96 (55.22) | −0.10 | .319 | − 1632.19, 532.26 | 0.01 | 0.02 |
Physical activity step equivalents (per day) | 9058.36 | 13,369.17 | 11,724.57 | − 1644.60 (165.78) | 0.10 | .921 | − 3413.70, 3084.77 | 0.00 | 0.00 |
Self-Monitoring Index | |||||||||
Food tracking frequency (days/week) | 4.43 | 0.84 | 0.35 | −0.49 (0.18) | −2.68 | .007* | −0.85, − 0.13 | 0.02 | 0.03 |
Activity tracking frequency (days/week) | 6.30 | 1.48 | 0.38 | −1.10 (0.24) | −4.53 | <.001* | −1.58, −0.62 | 0.06 | 0.06 |
Behavior Change Index | |||||||||
Average fat intake (grams/day) | 51.94 | 49.34 | 52.36 | 3.02 (2.36) | 1.28 | .201 | −1.61, 7.64 | 0.01 | 0.01 |
Average caloric intake (per day) | 1465.31 | 1434.85 | 1427.39 | −7.46 (54.31) | −0.14 | .891 | −113.90, 98.97 | 0.00 | 0.00 |
Habit Strength Index | |||||||||
Total score | 2.85 | 4.41 | 3.97 | −0.44 (0.17) | −2.60 | .009* | −0.77, − 0.11 | 0.03 | 0.03 |