Even healthy individuals occasionally test positive—about 4% of the general population has elevated rheumatoid factor without any disease symptoms. This percentage increases with age, reaching ...

Most patients with rheumatoid arthritis, and almost all patients with Sjogren syndrome, have positive rheumatoid factor test results. If the levels are higher, the disease can be more certainly ...

A positive test result means your rheumatoid factor levels are higher than they should be. Remember, sometimes the rheumatoid factor is also found in the blood of healthy people.

A positive result means you have a higher-than-normal level of rheumatoid factor in your blood. It may be a sign of rheumatoid arthritis , other autoimmune diseases, or an underlying infection.

A positive rheumatoid factor test result indicates that a high level of rheumatoid factor was detected in your blood. A higher level of rheumatoid factor in your blood is closely associated with ...

The results showed, moreover, that in rheumatoid patients in whom all three tests were positive, rheumatoid factor was different and separable from the factors that produced L.E. cells and nuclear ...

Rheumatoid factor (RF) is a type of antibody, an immune system protein that helps the body fight foreign substances like bacteria and viruses, called antigens. Antibodies, also known as ...

Healthy people with high rheumatoid factor levels were up to 26 times more likely to develop rheumatoid arthritis in a long-term prospective study. News & Perspective Drugs & Diseases ...

Primary Sjögren’s syndrome is a common systemic autoimmune disease, with a female-to-male predominance of 9:1 and peak incidence at approximately 50 years of age. 1 The hallmark of the disease ...