DRB1* | Severe RA (n = 95) | Benign RA (n = 70) | OR (95% CI) | p |
---|---|---|---|---|
X is any HLA-DRB1 gene other than HLA-DRB1*04 and 01 alleles. χ2 test was used for analysis. | ||||
*04/04 | 10 | 5 | 9 (1.1 to 73.7) | 0.014 |
*04/01 | 11 | 1 | 2 (1.08 to 4.29) | 0.03 |
*04/X | 37 | 16 | NS | |
*01/01 | 4 | 1 | NS | |
*01/X | 20 | 10 | ||
*X/X | 13 | 37 | 0.14 (0.06 to 0.29) | <0.0001 |