Table 4.

Difference in means of measures between low and high outcome expectancy categories^a

	Outcome expectancy category
Measure	OES < 4.0 (N = 108)	OES ≥ 4.0 (N = 154)	p value
WOMAC pain subscale	262.3 ± 106.6	259.7 ± 94.5	0.83
WOMAC function subscale	928.6 ± 341.5	891.9 ± 356.3	0.41
Arthritis Self-Efficacy Scale-8	5.6 ± 2.1	6.6 ± 2.1	0.0002
Beck Depression Inventory-II	9.6 ± 10.7	6.7 ± 7.7	0.01
PROMIS Distress-Anxiety Short Form	50.0 ± 9.1	50.2 ± 8.6	0.86
Perceived Stress Scale	14.2 ± 7.5	12.5 ± 6.6	0.06
MOS Social Support Survey	65.2 ± 22.3	67.6 ± 24.3	0.42

^aMean ± SD