Table 3.
Mean (95% CI) in physical activity levels and enjoyment over 4 months.
| Outcomes | Cash arm (N = 154) | Hedonic arm (N = 156) | Differencea (Hedonic Arm-Cash Arm) | SESa |
|---|---|---|---|---|
| Proportion of months step target was achieved | 90.53 (86.87, 94.20) | 88.34 (84.71, 91.98) | −2.19 (−7.33, 2.95) | −0.10 |
| bChange in daily steps from baseline (in ‘000) | 0.87*** (0.36, 1.37) | 1.00*** (0.52, 1.49) | −0.02 (−0.49, 0.44) | −0.01 |
| bChange in daily Fitbit® fairly and very active minutes from baseline | 5.86** (1.66, 10.06) | 9.00***(4.71, 13.29) | 0.87 (−4.04, 5.78) | 0.04 |
| b,cChange in total physical activity from baseline (minutes per day) | 31.04** (12.01, 50.08) | 44.29*** (23.86, 64.73) | 9.14 (−16.94, 35.21) | 0.08 |
| b,cChange in activity at work from baseline (minutes per day) | 16.71** (5.23, 28.19) | 10.19* (0.82, 19.56) | −3.81 (−18.71, 11.08) | −0.06 |
| b,cChange in travel to and from places from baseline (minutes per day) | 3.79 (−6.52, 14.11) | 17.62*(3.02, 32.23) | 11.40 (−4.27, 27.06) | 0.16 |
| b,cChange in recreational activities from baseline (minutes per day) | 10.54** (2.78, 18.30) | 16.48** (6.54, 26.42) | 1.55 (−10.23, 13.33) | 0.03 |
| b,cChange in sedentary activities from baseline (minutes per day) | −24.84 (−55.29, 5.61) | −20.32 (−51.48, 10.84) | 2.49 (−38.45, 43.43) | 0.01 |
| b,dChange in physical activity enjoyment from baseline | 0.34** (0.13, 0.55) | 0.40*** (0.19, 0.62) | −0.13 (−0.39, 0.13) | −0.11 |
CI, confidence interval; SES, Standardized effect size.
aBetween arm comparison results based on a generalized linear model adjusted for baseline activity level and gender.
bWithin arm comparison results are based on the paired t-test.
cAs measured by GPAQ = Global Physical Activity Questionnaire.
dAs measured by PACES = 8-item Physical Activity Enjoyment Scale.
*p < 0.05, **p < 0.01, ***p < 0.001.