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Table 2 Extra-articular clinical features in the various JIA subtypes presenting at University Teaching Hospital, Lusaka, Zambia

From: Clinical patterns of juvenile idiopathic arthritis in Zambia

Clinical features Systemic JIA (n = 11) Polyarticular RF(−) JIA (n = 27) Polyarticular RF(+) JIA (n = 9) Oligoarticular (n = 25) Psoriatic arthritis JIA (n = 1) Enthesitis related JIA (n = 5) Overall (n = 78)
Fever 11 (100%) 10 (37.0%) 2 (22.2%) 4 (16.0%) 1 (100%) 0 (0%) 28 (35.9%)
Still’s Rash 4 (36.4%) 2 (7.4%) 1 (11.1%) 2 (8.0%) 0 (0%) 0 (0%) 9 (11.5%)
Eye Involvement 1 (9.1%) 1 (3.7%) 1 (11.1%) 3 (12.0%) 0 (0%) 4 (80.0%) 10(12.8%)
  Acute Uveitis 0 (0%) 1 (3.7%) 1 (11.1%) 0 (0%) 0 (0%) 1 (20.0%) 3 (3.8%)
  Chronic Uveitis 1 (9.1%) 0 (0%) 0 (0%) 3 (12.0%) 0 (0%) 2 (40.0%) 6 (7.7%)
  Conjuctivitis 0 (0%) 0 (0%) 0 (0%) 0 (0%) 0 (0%) 1 (20.0%) 1 (1.3%)
  None 10 (90.9%) 26 (96.3%) 8 (88.9%) 22 (88.0%) 1 (100%) 1 (20.0%) 69(87.2% )
*ESR 40±29.0 59±39.2 53±2.0 44.2±22.3 ND ND 52.25±34.4
(n = 3) (n = 11) (n = 2) (n = 5)    (n = 21)
HB 11.1±0.82 10.7±2.47 11.1±0.0 11.56±2.01 ND ND 11.0±2.2
  (n = 3) (n = 13) (n = 2) (n = 5)    (n = 23)
  1. NB.: JIA Juvenile Idiopathic Arthritis, n number, RF (−) Rheumatoid Factor negative, RF(+) Rheumatoid Factor Positive, ND Not determined, ESR Erythrocyte Sedimentation rate.
  2. * It must be noted that ESR were only available in 21 out of the 78 JIA case series.