Table 4.

Results for Generalized Estimating Equation Model Predicting the Probability of Wearing a Fitbit

Variable	Odds Ratio	95% LB	95% UB
MTa	1.85	0.67	5.16
Interventionb	1.26	0.67	2.34
Daysc	0.80	0.68	0.95
MT×Daysd	0.99	0.74	1.33
MT×Interventione	1.43	0.50	4.08
Days×Interventionf	1.21	1.03	1.44
MT×Days×Interventiong	1.01	0.75	1.34

LB indicates Lower Bound; MT, MapTrek; UB, Upper Bound.

^aThe MapTrek variable is an indicator for intervention membership.

^bThe Intervention variable is an indicator for the intervention period for both intervention and control subjects.

^cThe Days variable is the number of days since the intervention period started (−7 to 62).

^dThe MT×Days variable gives the effect of MapTrek over time.

^eThe MT×Intervention variable shows the effect of MapTrek after the intervention began.

^fThe Days×Intervention variable gives the effect over time after the intervention started.

^gThe MT×Days×Intervention variable gives the effect of MapTrek over time after the intervention started.