Table 1

Characteristics of rheumatoid arthritis (RA) patients at baseline

Number

487

Male/female

194/293

Age (SD)*

58.3 (12.5)

Age of onset (SD)*

48.9 (13.0)

Duration, years (SD)*

9.4 (8.3)

Rheumatoid factor positive (%)

283 (58.1)

Nodules (%)

84 (17.2)

Erosive (%)

405 (83.2)

HAQ (IQR)

1.625 (1.0, 2.125)

*Mean values and standard deviation (SD). HAQ, Health Assessment Questionnaire; IQR, interquartile range.

Mattey et al. Arthritis Research & Therapy 2012 14:R204   doi:10.1186/ar4042