title: Changes in use of disease-modifying antirheumatic drugs for rheumatoid arthritis in the United States during 1983-2009.
abstract: OBJECTIVE
  Use of nonbiologic disease-modifying antirheumatic drugs (DMARDs) and/or biologic DMARDs is generally recommended to improve the prognosis of patients with rheumatoid arthritis (RA). The objective of this study was to describe the changing trends in DMARD use for RA over the past 2 decades.
  
  
  METHODS
  We analyzed data from an open longitudinal cohort of RA patients recruited from rheumatologists' practices in northern California. We examined baseline demographic and clinical characteristics of the participants and their long-term DMARD use through annual comprehensive structured telephone interviews.
  
  
  RESULTS
  A total of 1,507 established RA patients were recruited through 5 enrollment periods between 1983 and 2009. Between 1983 and 2009, the use of any DMARD increased from 71% of all patients to 83% (P for trend < 0.0001). In 2009, 43% received a biologic DMARD, 34% were on both nonbiologic and biologic DMARDs, and 40% were treated with only nonbiologic DMARDs. The 4 most commonly used nonbiologic DMARDs in 2009 were methotrexate (49%), hydroxychloroquine (30%), leflunomide (13%), and sulfasalazine (7%). Etanercept (20%) was the most commonly used biologic DMARD in 2009, followed by infliximab (10%), adalimumab (9%), and abatacept (6%). Use of oral steroids was common (40-50%) and remained similar throughout the study period.
  
  
  CONCLUSIONS
  There has been a significant increase in the use of DMARDs for RA over the past 2 decades. However, 15% of the individuals with a clinical diagnosis of RA were not receiving DMARDs in 2009. Future research should focus on sociodemographic and clinical factors associated with DMARD use for RA.
authors: Brigham and Women's Hospital, Boston, Massachusetts.
authors: Seoyoung C
authors: SC
authors: Kim
authors: Ed
authors: E
authors: Yelin
authors: Chris
authors: C
authors: Tonner
authors: Daniel H
authors: DH
authors: Solomon
mesh_terms: D000368:Aged; D018501:Antirheumatic Agents / Q000627:therapeutic use*; D001172:Arthritis, Rheumatoid / Q000188:drug therapy* / Q000453:epidemiology*; D015331:Cohort Studies; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D014481:United States / Q000453:epidemiology
chemical_list: D018501:Antirheumatic Agents