Table 6 Frequency of ILAR Categories by Geographic Area
From: Epidemiology and demographics of juvenile idiopathic arthritis in Africa and Middle East
|
Northern Europe (n = 845) |
Western Europe (n = 832) |
Southern Europe (n = 2400) |
Eastern Europe (n = 2044) |
North America (n = 523) |
Latin America (n = 849) |
Africa and Middle East (n = 1209) |
Southeast Asia (n = 379) | |
|---|---|---|---|---|---|---|---|---|
| Systemic arthritis | 42 (5.0) | 57 (6.9) | 204 (8.5) | 167 (8.2) | 22 (4.2) | 149 (17.6) | 204 (16.9) | 125 (33.0) |
| Oligoarticular | 340 (40.2) | 317 (38.1) | 1360 (56.7) | 848 (41.5) | 185 (35.4) | 261 (30.7) | 457 (37.8) | 41 (10.8) |
| RF-negative polyarthritis | 223 (26.4) | 198 (23.8) | 480 (20.0) | 539 (26.4) | 165 (31.5) | 217 (25.6) | 271 (22.4) | 48 (12.7) |
| RF-positive polyarthritis | 30 (3.6) | 22 (2.6) | 31 (1.3) | 91 (4.5) | 22 (4.2) | 95 (11.2) | 61 (5.0) | 30 (7.9) |
| Psoriatic arthritis | 35 (4.1) | 40 (4.8) | 88 (3.7) | 54 (2.6) | 37 (7.1) | 13 (1.5) | 37 (3.1) | 5 (1.3) |
| Enthesitis related arthritis | 87 (10.3) | 125 (15.0) | 130 (5.4) | 254 (12.4) | 56 (10.7) | 83 (9.8) | 111 (9.2) | 113 (29.8) |
| Undifferentiated arthritis | 88 (10.4) | 73 (8.8) | 107 (4.5) | 91 (4.5) | 36 (6.9) | 31 (3.7) | 68 (5.6) | 17 (4.5) |