Table 4.

Descriptive statistics of measures of function, psychological factors, and physical impairments, and the correlations between these measures and STTotal-11 and STUp-11 scores.

N = 43	Mean (SD)	STTotal-11	STUp-11
Performance-Based Physical Function
STTotal-11†	18.1 (7.5)	-	0.84**
STUp-11‡	8.0 (3.4)	0.84**	-
Figure of 8 Test Time (sec)	7.2 (1.5)	0.61**	0.54**
Timed chair rise (sec) §	12.6 (11.6 – 14.3)	0.59**	0.53**
Gait speed-self-selected (m/sec)	1.09 (0.17)	−0.63**	−0.58**
Gait speed-fast (m/sec)	1.53 (0.29)	−0.68**	−0.59**
Self-Report Physical Function
WOMAC-PF ∥	18.7 (8.3)	0.12	0.07
LEFS ¶	49.4 (9.7)	−0.22	−0.24
Psychological Factors
Anxiety	17.2 (4.6)	0.06	−0.02
Depression	7.5 (3.3)	−0.05	0.14
Fear of falling	0.7 (0.3)	0.17	0.12
Physical Impairments
Knee Extension (Nm/kg)	0.84 (0.34)	−0.58**	−0.66**
Hip Extension (Nm/kg)	1.49 (0.51)	−0.40*	−0.45*
Hip Abduction (Nm/kg)	0.76 (0.29)	−0.60**	−0.78**
Knee Flexion ROM (°)	123.0 (9.4)	−0.43*	−0.28
Knee Extension ROM (°)	−5.5 (3.6)	−0.01	−0.03

^*Significant at p ≤ 0.01

^**Significant at p ≤ 0.001

^†11-step stair ascend/descend test

^‡11-step stair up (ascend) test (STUp-11)

^§Variable not normally distributed. Descriptive statistics represent median (Q25–Q75). Correlation coefficient represents Spearman rho

^∥Western Ontario and McMaster Universities Osteoarthritis Index-Physical Function scale

^¶Lower Extremity Function Scale