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Table 2 Characteristics of the cohort comprising sJIA and “suspected” sJIA cohort

From: Application of the Yamaguchi criteria for classification of “suspected” systemic juvenile idiopathic arthritis (sJIA)

Characteristics sJIA (ie. fulfilling ILAR criteria) “suspected” sJIA Total cohort
  n = 18 n =13 n = 31
Mean age (years) 11.9 6.9** 9.8
Male:Female 13:5 7:6NS 20:11
Mean duration of symptoms at time of presentation (days) 109.1 51.8NS 85.1
Number of patients who received pre treatment with steroids 8(44.4%) 2(15.4%)NS 10
Mean daily dose of steroids (mg/kg/day)# 0.96 2.47NS 1.3
Mean number of days that the patients had received steroids 8.13 7.5NS 8
Number of patients who developed MAS on follow up 1 6* 7
Average number of joints 9 0* 5.2
Mean ESR(mm/hr) 62.2 43.8** 54.5
Mean CRP (mg/L) 130.5 116.2 NS 124.2
Mean Hemoglobin (gm/dL) 10.9 10.2 NS 10.6
Mean WBC (cells x 109/L) 15.2 20.7 NS 17.5
Mean platelet count (cells x 109/L) 337.6 468.4 NS 413.6
Mean ALT (U/L) 62.4 107.9 NS 81.5
Mean AST (U/L) 55.5 41.3 NS 49.5
  1. *= p value <0.05, ** = p value < 0.005 ,NS = not significant.
  2. # Mean value only of those patients who had been treated with steroids.