Table 5.

Results of the Ordinary Least Squares Regression Analyses Demonstrating Impact of Trust in Physician, Number of Referrals to Health Care Providers, Education, and Income on Pain Levels of Respondents With Fibromyalgia^a

Regression Model
				95% CI
Variables	Levels	Bb	βc	Lower Bound	Upper Bound	P Value
Intercept	None	8.58		7.80	9.36	< .001
Trust in physician	None	−0.02	−0.15	−0.03	−0.01	< .001
No. of referrals to health care professional	> 10 referrals ≤ 10 referrals*	0.86	0.18	0.47	1.26	< .001
Education	At least some college education	−1.28	−0.19	−1.82	−0.73	< .001
	≤ High school*
Income	> $50,000	−0.76	−0.17	−1.13	−0.39	< .001
	≤ $50,000*
Model Characteristics
n = 524	R2 = 0.136	Adjusted R2 = 0.129		F = 20.46		Significance level < .001

^aMultiple linear regression analysis stepwise method. Significance level = .05.

^bB = unstandardized regression coefficient.

^cβ = standardized regression coefficient.

Symbol: * = reference category.