Frequency of HLA-DR non-inherited maternal (NIMA) and paternal antigens (NIPA) in DR4 negative RA patients from this study and the study of Ten Wolde8 and in DR4 negative non-RA controls
| NIMA | NIPA | OR (95% CI) | ||
|---|---|---|---|---|
| This study | DR4+ | 8 | 3 | 3.10 (0.76, 12.70) |
| DR4− | 31 | 36 | ||
| Ten Wolde et al | DR4+ | 12 | 2 | 4.26 (0.88, 20.62) |
| DR4− | 38 | 27 | ||
| Both studies | DR4+ | 20 | 5 | 3.65 (1.29, 10.31) |
| DR4− | 69 | 63 | ||
| Controls | DR4+ | 8 | 9 | 0.87 (0.31, 2.42) |
| DR4− | 58 | 57 |