American College of Rheumatology 20 , 50 , and 70 responses achieved during the DB period were maintained through the LTE , and on Day 981 were 80.2 % ( 95 % CI 77.2 , 83.2 ) , 63.5 % ( 95 % CI 58.2 , 68.9 ) , and 39.5 % ( 95 % CI 34.0 , 44.9 ) for patients who kept taking SC ABA , and 80.0 % ( 95 % CI 77.0 , 83.0 ) , 63.2 % ( 95 % CI 57.8 , 68.7 ) , and 39.2 % ( 95 % CI 33.7 , 44.7 ) for those who switched from IV to SC ABA .