Table 3

Comparisons of different models for derivation of the EULAR Sjögren's Syndrome Patient Reported Index (ESSPRI)

Model	Domains	β-Coefficients	SE	Weights	Adjusted p value	R² for the model	Correlation of the resulting ESSPRI score with PGA
1	Dryness	0.15	0.07	1	0.0400	0.53	0.72
	Fatigue	0.29	0.05	2	<0.0001
	Pain	0.22	0.05	2	<0.0001
	Ocular dryness	0.27	0.06	2	<0.0001
2	Dryness	0.32	0.06	3	<0.0001	0.49	0.70
	Fatigue	0.23	0.07	2	0.0007
	Pain	0.23	0.05	2	<0.0001
	Mental fatigue	0.11	0.06	1	0.0619
4	Priority dryness	0.40	0.10	2	0.0001	0.41	0.64
	Fatigue	0.29	0.08	1	0.0004
	Pain	0.21	0.08	1	0.0079
3	Dryness	0.33	0.06	1	<0.0001	0.49	0.70
	Fatigue	0.30	0.05	1	<0.0001
	Pain	0.24	0.05	1	<0.0001