The MHC2TA-168A>G gene polymorphism is not associated with rheumatoid arthritis in Austrian patients

Table 2 MHC2TA -168A>G genotype and clinical characteristics of Austrian rheumatoid arthritis patients

	AA genotype	AG genotype	GG genotype	P value
				Dominant, AA:AG + GG genotypes	Recessive, AA + AG:GG genotypes
Rheumatoid factor (n (%))				0.23	0.27
Positive	136	107	14
Negative	42	42	8
Anti-cyclic-citrullinated peptide (n (%))				0.89	0.38
Positive	61	57	7
Negative	32	29	6
Stage (n (%))				0.15	0.40
1	37	40	7
>1	138	107	15
Age at onset of rheumatoid arthritis (years ± SD)	50 ± 16	50 ± 16	52 ± 12	0.90	0.50

SD, standard deviation. Data for rheumatoid factor were available from 349 patients, data for the clinical stage of the disease from 344 patients and data for the anti-cyclic-citrullinated peptide were available from 192 patients. The stage of disease is defined by the radiologic stage (Steinbroker).

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