Table 4

Findings of the univariable analysis (UVA) and multivariable analysis (MVA)

Variable name	Catastrophising			Coping
Variable name	p Value (UVA)	Correlation coefficient	p Value (MVA)	p Value (UVA)	Correlation coefficient	p Value (MVA)
SF-12 PCS	<0.001	−0.250**		NS
SF-12 MCS	<0.001	−0.443**	<0.001	0.001	0.171**	NS
SLAQ score	<0.001	0.475*	0.042	NS		NS
VFS score	<0.001	0.367*		NS
SLICC/ACR DI	<0.001	0.192*		NS
Number of concomitant diseases	<0.001	0.202*		NS
Number of lupus-specific drugs	<0.001	0.204*	0.004	NS		NS
Inability to work	0.001	0.213*		NS
Degree of disability (%)	0.003	0.169**		NS
Pain in the last 7 days	<0.001	0.420*	0.034	NS		NS
Impairment in the last 7 days	<0.001	0.388*		NS
Disease flares during last 3 months	<0.001	0.280*		NS
Social participation	NS^X		NS	0.001^X		0.006

Data are p values and correlation coefficients. Correlations were carried out by Spearman's (*) and Pearson's (**) correlations. The p values for catastrophising and coping in the UVA were derived from Spearman's and Pearson's correlation or from the Mann–Whitney U test (x). The p values for catastrophising and coping in the MVA were derived from ANOVA (analysis of variance). Only complete cases (n=323) were included in the MVA.
SF-12 MCS, SF-12 Mental Component Summary; SF-12 PCS, SF-12 Physical Component Summary; SLAQ, Systemic Lupus Activity Questionnaire; SLICC/ACR DI, Systemic Lupus International Collaborating Clinics/American College of Rheumatology Damage Index; VFS, Vanderbilt Fatigue Score.