Research Article
A Promoter Region Polymorphism in PDCD-1 Gene Is Associated with Risk of Rheumatoid Arthritis in the Han Chinese Population of Southeastern China
Table 1
Characteristics of RA patients and controls.
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Values are numbers (%); RA: rheumatoid arthritis; RF: rheumatoid factor; anti-CCP: anticyclic citrullinated peptide. value calculated by Pearson chi-square test (all frequency >0.05) or Fisher’s exact test (any frequency <0.05). b value calculated by Student’s -test. cClinical data were not available for some cases. |