Table 3 Distribution of juvenile idiopathic arthritis (JIA) subtypes among our cohort in comparison to other published literature
JIA subtype | Oman (n = 107) | Japan [5] (n = 1606) | France [7] (n = 67) | Canada [8] (n = 785) | Kuwait [9] (n = 108) | Egypt [10] (n = 132) | KSA [6] (n = 115) | Zambia [11] (n = 78) | Nigeria [12] (n = 78) | P-value |
|---|---|---|---|---|---|---|---|---|---|---|
Systemic | 17.8 % | 54 % | 8.9 % | 13.6 % | 29 % | 13.6 % | 44 % | 14.1 % | 7.7 % | <0.001 |
Oligo JIA | 31.8 % | 21 % | 40.3 % | 39.8 % | 29 % | 52.2 % | 26 % | 32 % | 26 % | <0.001 |
Poly JIA | 46.7 % | 25 % | 25.6 % | 42 % | 29.5 % | 30 % | 46.1 % | 41 % | <0.001 | |
Poly RF+ | 7.5 % | - | 0 | 3.6 % | - | 8.3 % | - | 11.5 % | 14.1 % | 0.006 |
Poly RF- | 39.2 % | - | 22.4 % | 22 % | - | 21.2 % | - | 34.6 % | 26.9 % | 0.001 |
Psoriatic arthritis | 0.9 % | - | 4.5 % | 10.8 % | - | 0 | - | 1.3 % | 1.3 % | <0.001 |
ERA | 2.8 % | - | 17.9 % | 8.8 % | - | 4.5 % | - | 6.4 % | 23 % | 0.002 |
Undifferentiated | - | - | 1.3 % | - | - | 0.019 |