Table 5. Adjusted model of change in mean daily step count by intervention arm for class 3 (less motivated and at-risk).
| Class 3 (n = 153) | ||||
|---|---|---|---|---|
| Control n = 47 |
Gamification with Support n = 40 |
Gamification with Collaboration n = 35 |
Gamification with Competition n = 31 |
|
| Baseline | ||||
| Steps per day, mean (SD) | 6533 (3073) | 6053 (2513) | 7282 (3628) | 6592 (3482) |
| Main intervention period | ||||
| Steps per day, mean (SD) | 6505 (2366) | 6884 (2267) | 7387 (2286) | 7009 (3102) |
| Primary model | ||||
| Difference relative to control and adjusted for baseline (95% CI) | - | 620.3 (-160, 1400.7) | 545.4 (-247.4, 1338.2) | 466.2 (-348.1, 1280.4) |
| P value1 | - | 0.12 | 0.18 | 0.26 |
| Follow-up period | ||||
| Steps per day, mean (SD) | 6068 (2063) | 6467 (2006) | 6624 (1908) | 6758 (2945) |
| Main adjusted model | ||||
| Difference relative to control and adjusted for baseline (95% CI) | - | 593.2 (-152.4, 1338.8) | 273.9 (-472.2, 1019.9) | 662.6 (- 205.4, 1530.6) |
| P value1 | - | 0.12 | 0.47 | 0.13 |
Abbreviations: SD, standard deviation; CI, confidence interval.
1Bonferroni adjusted P value <0.017 used to determine significance.