A five-year prospective study of fatigue in primary Sjögren's syndrome

Table 3 Hierarchical multiple linear regression.

	FSS difference		FACIT-F difference		VAS difference		Vitality difference
	Beta	P	Beta	P	Beta	P	Beta	P
Age	-0.10	0.42	-0.12	0.31	-0.11	0.37	-0.08	0.54
Education	0.04	0.69	-0.07	0.55	0.05	0.68	-0.19	0.08
Gender	0.03	0.79	-0.19	0.08	0.02	0.83	-0.08	0.50
Schirmer	-0.06	0.60	-0.10	0.37	0.07	0.55	-0.04	0.74
UWS	-0.05	0.65	-0.07	0.54	0.00	0.97	-0.08	0.47
Focus score	0.01	0.90	0.07	0.57	0.05	0.69	0.08	0.48
Anti-SSA	-0.11	0.44	-0.06	0.68	-0.02	0.90	0.00	0.99
Anti-SSB	-0.17	0.19	0.12	0.36	-0.13	0.34	0.10	0.46
IgG	0.09	0.46	0.00	0.98	-0.07	0.55	-0.09	0.45
Mental health	-0.03	0.81	0.03	0.78	0.02	0.86	-0.07	0.52
ANA	0.00	0.98	-0.01	0.93	0.06	0.70	-0.14	0.37

Standardised coefficients (beta) and p-values, one regression model for each fatigue measure. The difference of each fatigue measure is the dependent variable. N = 103 for focus score data among the 122 follow-up patients, other variables had larger samples. The P-values for each model were 0.88, 0.66, 0.96 and 0.82, respectively. ANA, antinuclear antibodies; UWS, unstimulated whole saliva. FSS, VAS, FACIT-F, vitality, see Table 1 legend.

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