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Table 2 Clinico-laboratory correlates

From: Juvenile dermatomyositis in South African children is characterised by frequent dystropic calcification: a cross sectional study

Global weakness Present (n = 5) Absent (n = 16) p value
Age - mean (SD) years 7.3(2) 10.5(3.3) 0.04
CRP - mean (SD) mg/l 52(81) 4(4.5) 0.03
ESR - mean (SD) mm/hr 83(41) 24(25) 0.007
Contractures Present (n = 8) Absent (n = 13)  
Age - mean (SD) years 6.8(3) 11.6(2) 0.0003
CRP - mean (SD) mg/l 45(75) 3.8(3.9) 0.000
ESR - mean (SD) mm/hr 59(48) 25(26) 0.04
Calcinosis Present (n = 15) Absent (n = 6)  
Age-mean (SD) years 9.1(3.5) 11.3(2) 0.18
Duration of follow-up - mean (SD) (months) 39 (28) 13(14) 0.04
CK - mean (SD) IU/l 288 (402) 2414(3201) 0.02
Aldolase mean (SD) IU/ 18.5 (12.6) 38.6(23.5) 0.03
Vasculitis (%) 11(73.3) 0 (0) 0.003
Staphylococcus aureus infection (%) 7 (46,7) 0 (0) 0.04
Staphylococcus aureus infection Present (n = 7) Absent (n = 14)  
Duration of follow-up - mean (SD) (months) 51(32) 22(20) 0.02