... most of the gender differences in RA disease activitymay originate from the measures of disease activity rather thanfrom RA disease activity itself.Introduction The possible influence of gender ... were analyzed for American College of Rheumatology Core Data Set measures of disease activity,DAS28 (disease activity score using 28 joint counts), fatigue, the presence of rheumatoid factor, nodules ... VanderbiltUniversity, Nashville, TN; Yusuf Yazici, NYU Hospital for JointDiseases, New York, NY; Martin Bergman, Taylor Hospital,Ridley Park, PA; Christopher Swearingen, Medical University of South Carolina,...