Psychometric Properties of the 8-Item English Arthritis Self-Efficacy Scale in a Diverse Sample
Table 3
Correlations between arthritis self-efficacy and health-related variables, overall and by sample subgroups.
Variable
Full sample
Gender
Race
Age group
Educational attainment
Weight status
Women
Men
White
Af Am
18–45
46–64
65+
Not college grad
College grad
Normal
Overweight
Obese
Pain
−0.39*
−0.39*
−0.43*
−0.35*
−0.44*
−0.48*
−0.42*
−0.26*
−0.32*
−0.41*
−0.39*
−0.38*
−0.40*
Fatigue
−0.41*
−0.42*
−0.32*
−0.41*
−0.39*
−0.35*
−0.49*
−0.23*
−0.34*
−0.44*
−0.41*
−0.38*
−0.43*
Stiffness
−0.39*
−0.37*
−0.53*
−0.39*
−0.38*
−0.57*
−0.41*
−0.24*
−0.32*
−0.41*
−0.47*
−0.33*
−0.41*
Depressive symptoms
−0.43*
−0.43*
−0.47*
−0.45*
−0.42*
−0.60*
−0.45*
−0.28*
−0.40*
−0.43*
−0.52*
−0.46*
−0.38*
HRQOL
−0.41*
−0.38*
−0.54*
−0.43*
−0.38*
−0.35*
−0.42*
−0.40*
−0.41*
−0.38*
−0.46*
−0.47*
−0.36*
Self-rated health
0.32*
0.36*
0.07
0.31*
0.33*
0.46*
0.30*
0.29*
0.33*
0.29*
0.50*
0.32*
0.27*
Disability
−0.43*
−0.41*
−0.52*
−0.38*
−0.47*
−0.66*
−0.42*
−0.33*
−0.44*
−0.37*
−0.57*
−0.22
−0.51*
6-min walk
0.24*
0.23*
0.26
0.21*
0.27*
0.15
0.27*
0.24*
0.14
0.28*
0.42*
0.13
0.26*
Gait speed
0.18*
0.20*
0.04
0.14*
0.23*
0.09
0.17*
0.30*
0.12
0.19*
0.42*
0.06
0.19*
Chair stands
0.25*
0.26*
0.13
0.28*
0.22*
0.34*
0.22*
0.33*
0.15
0.29*
0.42*
0.13
0.28*
Total PA
0.15*
0.16*
0.12
0.14*
0.13
0.25
0.10
0.23*
0.14
0.13*
0.36*
0.11
0.13*
Note: Af Am = African American; HRQOL = health-related quality of life (higher indicates more impairment); min = minute; total PA = light-, moderate-, and vigorous-intensity physical activity. Due to skewed distribution, a square root transformation was used for depressive symptoms, HRQOL, and total PA. *indicates .
