Table 2

 Comparison of baseline characteristics of anti-tumour necrosis factor α (TNFα) and disease modifying antirheumatic drug (DMARD) cohorts

Anti-TNF cohortDMARD cohort
No of patients84551199
Age in years (mean (SD))56 (12)60 (12)
Female (n (%))6483 (77)842 (70)
Current smokers (n (%))1676 (21)253 (26)
Disease duration (mean (SD))13.7 (9.4)9.1 (9.9)
Disease Activity Score 28 (mean (SD))6.6 (1.0)5.1 (1.4)
Previous no. DMARDS (mean (SD))4 (2)3 (2)
Health Assessment Questionnaire score (mean (SD))2.1 (0.5)1.6 (0.8)