Table 2.

Fixed effects for age, intervention phase, and physical function predicting distance traveled and days exceeding distance threshold criterion.

	Beta estimate	SE	df	t	95% CI	p
Model 1. Distance Traveled
Age	-0.011	0.035	19.776	-0.330	-0.083 to 0.061	0.745
Phase†
BL Phase	-0.382	0.145	2000.185	-2.640	-0.666 to -0.098	0.008
FU Phase	-0.404	0.153	1999.918	-2.635	-0.704 to -0.103	0.008
Function	0.593	0.230	20.280	2.583	0.115 to 1.072	0.018
Function * BL Phase	-0.023	0.065	1998.153	-0.355	-0.151 to 0.105	0.723
Function * FU Phase	-0.082	0.072	2001.004	-1.130	-0.224 to 0.060	0.259
Model 2. Distance threshold (2+SDs)
Age	0.002	0.002	19.708	0.971	-0.002 to 0.005	0.343
Phase†
BL Phase	-0.102	0.016	2010.424	-6.506	-0.133 to -0.071	< 0.001
FU Phase	-0.070	0.017	2010.030	-4.218	-0.102 to -0.037	< 0.001
Function	-0.016	0.011	22.470	-1.454	-0.039 to 0.007	0.160
Function * BL Phase	0.019	0.007	2003.165	2.697	0.005 to 0.033	0.007
Function * FU Phase	0.025	0.008	2013.183	3.134	0.009 to 0.040	0.002

NOTE. BL = Baseline; FU = Follow-up.

^†Phases were compared to the intervention (PAW) phase.