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. Author manuscript; available in PMC: 2012 Aug 1.

Published in final edited form as: J Psychosom Res. 2011 May 14;71(2):79–85. doi: 10.1016/j.jpsychores.2011.01.008

Table III.

Hierarchical Regression Model: Mental Health Functioning

Model	Variable	R	R²	R² Change	F Change	df_1,2	F Change p	β ^*	t	p	sr²^*
1
	Biologics	.19	.04	.04	.96	4,98	.43	-.01	-.11	.92	.00
	DMARDs							.08	.74	.46	.01
	NSAIDs							-.09	-.84	.41	.01
	Other							.14	1.34	.18	.01

2
	Disease activity	.32	.10	.06	3.28	2,96	.04	-.25	-2.55	.01	.06
	(RADAR) DAS-28							.02	.19	.85	.00

3
	Personal mastery	.57	.32	.22	15.39	2,94	<.001	.49	5.42	<.001	.21
	Social network							.06	.72	.47	.00

4
	Active coping	.77	.60	.27	12.08	5,89	<.001	.03	.36	.72	.00
	Passive coping							-.02	-.17	.86	.00
	Helplessness							-.07	-.87	.39	.00
	Internality							-.02	-.19	.85	.00
	Perceived stress							-.69	-7.10	<.001	.23

^*

β: Standardized regression coefficient

sr²: Unique variance