Table 4.

Multivariable Linear Regression Models Predicting HGS and F8WT Performance

Model HGS (N = 353, R 2 = .44, p < .001)	Characteristic	Estimate (SE)	95% CI	SE st
	Age	−0.006 (0.001)	−0.008 to −0.003	−0.18
	Gender	0.004 (0.02)	−0.04 to 0.04	−0.006
	Education	0.01 (0.02)	−0.02 to 0.05	0.02
Health, Cognitive, and Behavioral Attributes*
	Trails B − A	−0.0006 (0.0001)	−0.0008 to −0.0003	−0.21
	BPI pain severity	−0.01 (0.005)	−0.02 to −0.002	−0.12
Physiologic attributes
	Trunk extension endurance	0.06 (0.01)	0.04 to 0.08	0.22
	Ankle range of motion	−0.10 (0.02)	−0.13 to −0.05	−0.20
	Leg press velocity	0.13 (0.04)	0.05 to 0.20	0.16
	Sensory loss	−0.05 (0.02)	−0.08 to −0.01	−0.11
	Leg press strength	0.01 (0.04)	0.002 to 0.02	0.14
Model F8WT (N = 353, R 2 = .44, p < .001)	Characteristic	Estimate (S E)	95% CI	S E st
	Age	0.06 (0.02)	0.03 to 0.09	0.18
	Gender	0.22 (0.25)	−0.27 to 0.73	0.04
	Education	0.07 (0.21)	0.36 to 0.50	0.01
Health, Cognitive, and Behavioral Attributes*
	Trails B − A	0.003 (0.002)	−0.0004 to 0.006	0.08
	Self-efficacy	−0.02 (0.07)	−0.03 to −0.004	−0.12
Physiologic attributes
	Trunk extension endurance	−0.59 (0.13)	−0.84 to −0.34	−0.20
	Ankle range of motion	1.32 (0.24)	0.83 to 1.82	0.23
	Leg press velocity	−1.89 (0.48)	−2.83 to −0.94	−0.19
	Sensory loss	0.63 (0.24)	0.16 to 1.11	0.11
	Reaction time	0.009 (0.002)	0.004 to 0.01	0.16
	Heel-to-floor time	0.08 (0.03)	0.03 to 0.14	0.12

Notes. ABC = Activities-specific Balance Confidence scale; BPI = Brief Pain Inventory; F8WT = figure-of-8 walking test; HGS = habitual gait speed; PHQ-9: Patient Health Questionnaire-9; SE = standard error; S E _st = standardized estimate.

*Within separate multivariable models substituting Trails A for Trails B − A, Trails A was significantly associated with F8WT but not with HGS.