Research Article

Interaction between IL-33 Gene Polymorphisms and Current Smoking with Susceptibility to Systemic Lupus Erythematosus

Table 3

Association analysis for 4 target SNPs within the IL-33 gene and SLE risk.

SNPsGenotypes or allelesFrequencies N (%)OR (95% CI)HWE test for controls
Controls ()SLE cases ()

rs1929992AA genotype277 (65.2)209 (49.6)1.00 (ref)0.299
AG genotype128 (30.1)169 (40.2)1.51 (1.17-1.89)
GG genotype20 (4.7)43 (10.2)2.04 (1.34-2.78)
A allele682 (80.2)587 (69.7)1.00 (ref)
G allele168 (19.8)255 (30.3)1.62 (1.21-2.05)

rs7044343CC genotype244 (57.4)220 (52.2)1.00 (ref)0.170
CT genotype149 (35.1)159 (37.8)1.26 (0.83-1.85)
TT genotype32 (7.5)42 (10.0)1.58 (0.76-2.42)
C allele637 (74.9)599 (71.1)1.00 (ref)
T allele213 (25.1)243 (28.9)1.28 (0.81-2.01)

rs1891385AA genotype270 (63.5)201 (47.7)1.00 (ref)0.201
AC genotype132 (31.1)172 (40.9)1.51 (1.27-1.89)
CC genotype23 (5.4)48 (11.4)2.12 (1.43-2.88)
A allele672 (79.1)580 (68.9)1.00 (ref)
C allele178 (20.9)262 (31.1)1.64 (1.22-2.10)

rs10975498CC genotype249 (58.6)224 (53.2)1.00 (ref)0.593
CT genotype150 (35.3)162 (35.5)1.25 (0.96-1.63)
TT genotype26 (6.1)35 (8.3)1.36 (0.89-1.88)
C allele648 (76.2)610 (72.4)1.00 (ref)
T allele202 (23.8)232 (27.6)1.29 (0.95-1.69)

Adjusted for age, gender, BMI, current smoking, and alcohol drinking.