Nutritional status and nutrient intake were assessed in 17 children wi
th active juvenile chronic arthritis (JCA) who never received steroids
and in 17 controls matched for age and sex. Five patients had systemi
c, seven polyarticular and five oligoarticular JCA. Values significant
ly below those of the controls were found in systemic patients for hei
ght (p < 0.05), upper arm circumference (p < 0.05) and arm muscle area
(p < 0.01), and in polyarticular subjects for arm muscle area (p < 0.
01). All patients had unremarkable anthropometric fat measurements. Ai
l anthropometric measurements were normal in oligoarticular patients.
Twelve JCA patients had reduced serum iron (Fe), 6 reduced serum zinc
(SZn), 14 reduced intra-erythrocytic zinc (EZn) and 2 reduced serum co
pper (SCu). SZn was inversely correlated with erythrocyte sedimentatio
n rate (ESR) (p = 0.023). EZn was inversely related to lymphocyte coun
t (p = 0.022). SCu was related to ESR (p = 0.037) and to lymphocyte co
unt (p = 0.016). No significant difference in nutrient intake was foun
d between patients and controls. Active JCA was associated with reduce
d muscular mass, Fe, SZn and EZn. These alterations did not depend on
reduced nutrient intake.