Keep up-to-date on the latest rheumatoid arthritis (RA) research with our brief research summaries.
Obesity May Affect RA Tests
Research has shown that obesity can increase the risk of RA or worsen symptoms. A new study of more than 2,000 people with RA suggests it could also affect the results of tests used to measure RA inflammation.
Researchers at the University of Pennsylvania found a link between body mass index (BMI, a measure of body fat) and elevated results of two common tests – SED rate and C-reactive protein (CRP) – used in diagnosing RA and gauging its activity. Researchers say this association is related to fat mass and not RA disease activity. Doctors should consider a patient’s BMI when interpreting lab results.