. Author manuscript; available in PMC: 2016 Mar 1.

Published in final edited form as: Arthritis Care Res (Hoboken). 2015 Mar;67(3):358–365. doi: 10.1002/acr.22459

Table 2.

Pain, Disability and Depressive Symptoms as a Function of Demographic Characteristics, Health Status, and Sleep Disturbance

	Pain¹			Disability²			Depressive Symptoms³
	r	β	95% CI (β)	r	β	95% CI (β)	r	β	95% CI (β)
Demographics
Sex	.153	.195^d	.101, .289	.173	.198^d	.116, .279	.099	.114^a	.018, .209
Race	−.018	.056	−.039, .151	.135	.026	−.057, .108	−.047	−.083^e	.180, .013
Education	−.154	−.073	−.169, .023	−.201	−.096^a	−.179, −.013	−.145	−.095^e	−.193, .002
Health status
Health conditions	.185	−.028	.136, .080	.443	.207^d	.114, .301	.214	.057	−.052, .165
Perceived health	.373	.375^d	.266, .484	.557	.463^d	.368, .557	.313	.259^d	.149, .370
Sleep disturbance	.182	.112^a	.018, .206	.106	−.015	−.098, .067	.271	.206^d	.110, .302

Note: All coefficients are final step of hierarchical regression model. See text for details. The coefficients reported as “r” are Pearson product-moment coefficients. CI = confidence interval..

Adjusted R² = .188, F (6, 359) = 15.10, p < .001

Adjusted R² = .397, F (6, 359) = 39.33, p < .001

Adjusted R² = .164, F (6, 359) = 1.2.95 p < .001

p < .05

p < .01

p < .005

p < .001

.05 < p < .10