Table 3.

Results of Unadjusted Linear Mixed Effects Models Reporting the Annual Average Change and Estimated Average Decline Over Eight Years in Rapid and Usual Gait Speed Among Fatigue-Free Participants, by Energy Status, N = 1 889

Fatigue-Free Participants
	All Fatigue-Free		Higher Energy		Lower Energy
	Average Annual Gait Speed Change (β (p Value))	Estimated Average Gait Speed Decline	Average Annual Gait Speed Change (β (p Value))	Estimated Average Gait Speed Decline	Average Annual Gait Speed Change (β (p Value))	Estimated Average Gait Speed Decline
Usual gait speed	−0.034 (<.001)	23.3%	−0.034 (<.001)	23.5%	−0.035 (<.001)	25.0%
Rapid gait speed	−0.038 (<.001)	19.2%	−0.035 (<.001)	17.3%	−0.037 (<.001)	19.5%

Note: Results are unadjusted, and the betas and estimated averages are for change in gait speed over the course of the study.