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Table 1 Demographic and clinical data of all patients (n = 35) at the initial evaluation

From: Patients with juvenile idiopathic arthritis in clinical remission with positive power Doppler signal in joint ultrasonography have an increased rate of clinical flare: a prospective study

Mean age ± SD 11.6 ± 3.8 years
Mean age at JIA onset ± SD 4.4 ± 3.2 years
Mean time of JIA duration ± SD 7.1 ± 3.5 years
Females 28 (80%)
Subtype
 Oligoarticular persistent 14 (40%)
 Oligoarticular extended 12 (34.3%)
  Polyarticulara 9 (25.7%)
 ANA positive 20 (57.1%)
 Previous uveitis 4 (11.4%)
Type of clinical remission
 On medication 26 (74.3%)
 Off medication 9 (25.7%)
Mean time on clinical remission ± SD 1.9 ± 2.2 years
CHAQ median (minimum – maximum) 0 (0–0.375)
Global physician’s VAS median (minimum – maximum)b 0 (0–1)
Global parents or patient’s VAS median (minimum – maximum) 0 (0–5)
ESR mm3/h (mean ± SD) 6.8 ± 4.9
CRP mg/dL (mean ± SD) 0.2 ± 0.15
  1. SD standard deviation, JIA juvenile idiopathic arthritis, ANA antinuclear antibody, ESR erythrocyte sedimentation rate, CRP C-reactive protein, CHAQ Childhood Health Assessment Questionnaire, VAS visual analogue scale
  2. aNo patient had positive rheumatoid factor. bOne patient received a Global physician’s VAS of 1 due to joint limitation explained by previous joint damage and not due to active disease at the time of evaluation