Risk Factors for Rheumatoid Arthritis
Rheumatoid arthritis is somewhat of a medical mystery. Doctors believe that genetics influence the development of the disorder, but environmental factors, i.e. habits and activities within the patient’s control, may determine whether someone at risk does or does not develop RA. Genetic First, let us look at the genetic component of RA. People with rheumatoid arthritis have been found to have antibodies in their systems called anti-citrullinated protein/peptide antibodies (ACPAs for short). These antibodies, which attack the patient’s own proteins, signal the presence of RA. ACPAs are the most reliable predictor of RA. Another genetic marker of RA risk is the “rheumatoid factor.” The rheumatoid factor is also an antibody that shows up in patient blood work, but it is present in only eighty percent of actual rheumatoid arthritis patients. Both the rheumatoid factor and ACPAs can be accurately assessed with a blood test. Family History Anyone with a close family member who has developed rheumatoid arthritis should assume that he or she is at risk unless a blood test has clearly shown the absence of ACPAs and the rheumatoid factor. However, it is important to note that not everyone with ACPAs will develop rheumatoid arthritis. Age Age and gender play an important role.