Are There Any Common Genetic Risk Markers for Rheumatoid Arthritis and Periodontal Diseases? A Case-Control Study

Table 3

Genotype and allele distributions of SNPs in IL4Rα (rs1801275) and TNFα (rs361525) among RA patients and controls.

	Probands without RA and severe PD	RA patients with varying degrees of severity of PD	value
	IL4Rα rs1801275
AA (%)	72	60
AG (%)	25	33
GG (%)	3	7	0.150
A (%)	84.5	76.5
G (%)	15.5	23.5	0.043
TNFα rs361525
AA (%)	1	1
AG (%)	15	6.9
GG (%)	84	92.1	0.186
A (%)	10	1
G (%)	90	99	0.005

Statistical comparisons were made by the chi-square test including Yates correction. RA patients: patients with rheumatoid arthritis.