Table 5.
Baseline average daily steps and average daily step change by age quartile and condition (incentives vs. controls)
| Age Quartile | Incentivized groups |
Control group |
||||||
|---|---|---|---|---|---|---|---|---|
| N | Baseline | During Incentivized Period (average daily step change) | After Incentives Ended (average daily step change) | N | Baseline | During Incentivized Period (average daily step change) | After Incentives Ended (average daily step change) | |
| 18–33 years (Q1) | 96 | 8,092 (3,462) | 2446 (3,896) | 50 (2,898) | 23 | 7,830 (2,960) | −161 (2,047) | 396 (2,370) |
| 34–54 years (Q2) | 86 | 7,872 (3,059) | 2,442 (3,287) | 580 (2,393) | 20 | 7,602 (4,088) | 184 (2,824) | −635 (2,619) |
| 55–68 years (Q3) | 88 | 7,736 (3,341) | 3,425 (3,222) | 1,255 (2,432) | 28 | 7,570 (4,069) | 625 (1,663) | 836 (2,912) |
| 69–92 years (Q4) | 90 | 6,046 (3,391) | 2,059 (2,661) | 1,381 (2,444) | 19 | 6,354 (3,261) | 627 (1,113) | 676 (1,363) |
Note. Data presented are average daily step counts, or change in average daily steps, with standard deviations in parentheses. Means for “Incentivized groups” are aggregated across all 4 incentivized conditions (personal, loved one, charity, choice). To account for outliers, values exceeding 3 standard deviations of the mean were winsorized to equal +/− 3 standard deviations of the mean. Average daily step count change during incentives and after incentives calculated as the difference between post-test steps during that week and baseline steps.