Table 3 Comparative JIA Epidemiology: developing and developed countries
From: Clinical patterns of juvenile idiopathic arthritis in Zambia
JIA Subtypes | Zambia* | South Africa8 | India13 | Turkey14 | Norway11 | UK11 |
|---|---|---|---|---|---|---|
Number in the studied series | 78 | 78 | 224 | 196 | 172 | 572 |
Systemic JIA (%) | 14.1 | 7.7 | 8 | 15.3 | 17.4 | 14.7 |
Polyarticular RF (−) JIA (%) | 34.6 | 14 | 17 | 30.6 | 25.8 | 19.5 |
Polyarticular RF (+) JIA (%) | 11.5 | 26.9 | 12 | 6.6 | 2.9 | 5.2 |
Oligoarticular arthritis (%) | 32.1 | 26 | 21 | 34.1 | 27.3 | 43.7 |
Psoriatic arthritis JIA (%) | 1.3 | 1.3 | 1 | 1 | 4.6 | 7.5 |
Enthesitis related arthritis (%) | 6.4 | 23 | 36 | 10.3 | 6.3 | 6.9 |
Others | 0 | 0 | 5 | 2.5 | 15.6 | 2 |
Female : Male Ratio | 1.2:1 | 1:1 | - | 1:1.1 | 2.2:1 | 2.0:1 |
Eye involvement | 11.5 | - | - | 2 | 14.5 | 20 |
ANA Positivity | - | 4.48 (§ 3/67) | - | 14.2 | 41.2 | 33 |