Table 1

 Baseline characteristics

Sulfasalazine monotherapy (n = 58)COBRA therapy (n = 52)
COBRA, Combinatietherapie Bij Reumatoide Artritis trial; RF, rheumatoid factor; SE, shared epitope.
Age (years) (mean (SD))49 (12)50 (13)
Disease duration (months) (mean (SD))5 (5)5 (5)
Female (%)5271
RF positive (%)7274
Erosive disease (%)4442
SE (nil/heterozygous/ homozygous) (%)47/38/1546/48/6