... AA,Lazovskis J, Pincus T, QUEST-RA Group: Physical inactivity in patients with rheumatoid arthritis: data from twenty-one coun-tries in a cross-sectional, international study. Arthritis Care ... Overall, 74% of patients had positive RF, ranging from 61% in Germany to90% in Argentina. Extra-articular disease was present in 24%of patients, ranging from less than 15% in Italy and the Neth-erlands ... outpatients with RA in three or morerheumatology clinics in several countries [12]. Countries thatjoined QUEST-RA by June 2006 were Denmark, Finland,France, Germany, Ireland, Italy, the Netherlands,...