Patients without MEFV mutations
n=96
n (%)
Patients with MEFV mutations
n=6
n (%)
Mean age at diagnosis (years):   7,1±3,9   5,8 ±2,6
Gender, n (%)    
       Female 51 (53) 3 (50)
       Male 45 (47) 3 (50)
Clinical features, n (%)    
       Palpable purpura 96 (100) 6 (100)
       Arthritis or periatricular edema 55 (57) 3 (50)
       Mild GIT involvement 21 (22) 1 (17)
       Severe GIT involvement 11 (12) 0
       Renal involvement 10 (10) 1 (17)
Laboratory findings:    
       Leukocytes, n1=96, n2=6 9,7±3,9 9,1±2,9
       Elevated ESR, n1= 51, n2=4 26,0±19,3 26,8±21,1
       Elevated CRP, n1=27 n2=1 32,3±21,9 18*
* CRP value was higher than 5mg/L in only one patient with MEFV mutation
n1- number of data available for patients without MEFV mutations
n2- number of data available for patients with MEFV mutations
Table 2: Clinical manifestations in group of children with and without MEFV mutations.