Outcomes and estimations
Total and transport-related physical activity for each treatment group at baseline and post-intervention follow-up are presented in Table Physical activity outcomes at baseline and follow-up, stratified by treatment groupData presented as median (inter-quartile range)Median steps/day decreased from baseline to follow-up in both control (-1018.3 steps; 13.8% reduction) and intervention (-557.9 steps; 7.9% reduction) groups, transport-related physical activity decreased in the control group (20.0 min/week (27.6%)) but increased in the intervention group (80.0 min/week (133.3%)), and total PA increased in the control group (260.0 min/week (54.5%)) and decreased in the intervention group (35.0 min/week (5.5%)) (Table Analysis of the effect of the incentive intervention on physical activity using imputed data is presented in Table Effect of the incentive intervention on physical activity at follow-upβ = beta coefficient representing the difference in outcome at follow-up in intervention group vs. control group (reference), adjusted for baseline values. 95% CI = 95% Confidence Interval