Table 1.

Patients' characteristics grouped by cause of Hyperferritininemia (Rheumatologic or not)

Rheumatic disease (n=35)Other causes of ferritin elevation (n=1944)p
Female, n (%)13 (37.1)731 (37.6)0.96
Mean age, years (DS)62.5 (17.1)52.4 (21.1)<0.001
DiagnosticVasculitis9Solid cancer497
Still's disease8Infections336
Rheumatoid arthritis4Onco-hematologic disease302
SLE3Chronic renal insufficiency236
Seronegative arthritis and psoriatic arthritis3Hepatic disease188
Others3Others152
Gout2Hematologic disease128
Juvenile idiopathic arthritis1Cardiovascular57
Myositis1Sepsis46
IgG 41Iron overload2
Serum ferritin, median (IQR)1622 (1264- 3639)1460 (1200–2140)0.07
Tranferrin saturation, %, median (IQR)38 (19–50)33 (18–55)0.83
Follow-up time, years, median (IQR)5.2 (1,2–10.2)5.7 (1.2–8.9)0.97
Mortality, n (%)2 (5.9)698 (37.2)<0.001