Table 4

Summary of results of logistic regression analysis

Dependent variable	OR	95 % CI	p value
Development of Sjögren’s syndrome	Age	1.0932	1.04, 1.15	0.0009
Development of Sjögren’s syndrome	ANA positivity	32.5143	4.33, 244.29	0.0007
Development of Sjögren’s syndrome	Age	1.0620	1.01, 1.11	0.0142
Development of Sjögren’s syndrome	Serum γ globulin	1.1637	1.02, 1.32	0.0219
Development of Sjögren’s syndrome	Age	1.0600	1.01, 1.11	0.0185
Development of Sjögren’s syndrome	Serum IgG	1.1447	1.03, 1.27	0.0104
Development of Sjögren’s syndrome	Age	1.0677	1.01, 1.12	0.0119
Development of Sjögren’s syndrome	Serum β₂m	6.4573	1.98, 21.01	0.0019
Development of Sjögren’s syndrome	Age	1.0534	1.01, 1.10	0.0212
Development of Sjögren’s syndrome	ESR	1.0097	0.99, 1.03	0.4045
Development of Sjögren’s syndrome	Age	1.0837	1.02, 1.16	0.0150
	ANA positivity	25.0425	2.15, 292.10	0.0102
	Serum β₂m	5.9752	1.30, 27.37	0.0213

OR = Odds ratio; CI = confidence intervals; ANA-ab = antinuclear antibodies; S-β₂m = serum β₂-microglobulin; ESR = erythrocyte sedimentation rate.