Table 2.

Comparison of clinical parameters, IgG levels and complement levels between never smoking and ever smoking pSS patients

	Ever smokers (pSS) n = 24	Never smokers (pSS) n = 27	p value+
Focal sialadenitis	14/17 (82)	23/23 (100)	0.03*
Anti-SSA- and or SSB-positive	20/24 (83)	20/27 (74)	0.43
ESSDAI	7.5 (1.5; 10)	7 (1; 11)	0.85
ESSPRI	6 (5; 7)	6 (4; 8)	0.68
IgG (g/l)	12.9 (10.1; 17.2)	13.0 (10.1; 15.2)	0.62
C3 (g/l)	1.02 (0.92; 1.22)	0.99 (0.84; 1.16)	0.60
C4 (g/l)	0.19 (0.13; 0.21)	0.16 (0.13; 0.20)	0.40

Values are presented as median (IQR) or n/n available (%)

*p < 0.05

⁺Mann–Whitney U test