TNF-α promoter −308 genotype frequency in JIA subgroups and controls.
| Group | Total No. | −308 GG N (%) | −308 GA/AA N (%) | p* |
|---|---|---|---|---|
| Control group | 117 | 91 (77.8) | 26 (22.2) | |
| JIA patients | 114 | 87 (76.3) | 27 (23.7) | 0.876 |
| Oligoarticular persistent | 48 | 43 (89.6) | 5 (10.4) | 0.080 |
| Oligoarticular extended | 17 | 13 (76.5) | 4 (23.5) | 1.000 |
| Polyarticular | 24 | 15 (62.5) | 9 (37.5) | 0.123 |
| Enthesitis-related arthritis | 10 | 7 (70.0) | 3 (30.0) | 0.694 |
| Systemic | 9 | 6 (66.7) | 3 (33.3) | 0.684 |
| Psoriatic arthritis | 6 | 3 (50.0) | 3 (50.0) | 0.141 |
↵* Patient’s genotype in comparison with the control group.