Table 1 Profiles of JIA patients presenting at University Teaching Hospital, Lusaka, Zambia from 1994–98 & 2006–2010
From: Clinical patterns of juvenile idiopathic arthritis in Zambia
JIA subtypes | Total number (%) | Female: male ratio | Mean age at disease onset (Years ±STD) | Age range at onset (Years) | Mean age at presentation (Years ±STD) | Age range at presentation (Years) |
|---|---|---|---|---|---|---|
Overall | 78(100%) | 1.2:1 | 8.70±5.00 | 1–15 | 11.3±5.8 | 2–25 |
Systemic JIA | 11(14.1%) | 1:1.2 | 6±4.3 | 2–15 | 8±4.00 | 4.5–18 |
Polyarticular RF̄(−) JIA | 27(34.6%) | 1.7:1 | 10.70±3.4 | 3–15 | 12.89±3.8 | 4–16 |
Polyarticular RF̄(+) JIA | 9(11.5%) | 9:0 | 11.0±4.5 | 3–15 | 16.0±7.0 | 4–24 |
Oligoarticular arthritis | 25(32.0%) | 1:1.1 | 6.6±4.3 | 1–14 | 8.1±4.7 | 1.6–18 |
Psoriatic arthritis JIA | 1(1.3%) | NA | 13 | NA | 9 | NA |
Enthesitis related arthritis | 5(6.4%) | 1:4 | 10.9±4.8 | 2–15 | 17.8±4.2 | 9–28 |
Others (undifferentiated) | 0(0%) | NA | NA | NA | NA | NA |