Table 3.

Genotype relative risk analysis for single nucleotide polymorphism (SNP)1 and SNP2 in sample 1 of rheumatoid arthritis trio families

Genotype	Rheumatoid arthritis cases	Controls	P
SNP1
A/A	16	7	0.1 (global)
A/G	40	50
G/G	44	43
SNP2
C/C	45	32	0.03 (C/C versus C/A + A/A)
C/A	38	46	0.36 (C/C + C/A versus A/A)
A/A	13	18