XRCC1 Arg399Gln and Arg194Trp Polymorphisms and Risk of Systemic Lupus Erythematosus in an Iranian Population: A Pilot Study

Table 4

The association between XRCC1 Arg399Gln polymorphism and malar rash in SLE patients.

Genotypes	SLE patients with malar rash, n (%)	SLE patients without malar rash, n (%)	P value	OR (95% CI)
Arg/Arg	41 (47)	23 (30)		Ref = 1
Arg/Gln	32 (37)	43 (57)	0.01	0.42 (0.21–0.83)
Gln/Gln	14 (16)	10 (13)	0.6	0.89 (0.55–1.4)
Total	87	76