Table 2

Demographics and clinical features of RA patients

Parameter

Value

Age, mean ± SD years

48 ± 16.5

Sex, male/female

8/33

Duration of symptoms, mean ± SD months

58.28 ± 51.84

RF positive, %

84.85%

RF titer, median units(range)

117.4(20-1060)

ESR, mean ± SD mm/hours

67.94 ± 21.19

CCP titer, median units(range)

74.5(15-800)

Stiffness, median minutes(range)

76.67 ± 91.31

DAS28 (ESR) score, mean ± SD

6.35 ± 1.45

CCP, cyclic citrullinated peptide antibody; DAS28, Disease Activity Score using 28 joint counts; ESR, erythrocyte sedimentation rate; RA, rheumatoid arthritis; RF, rheumatoid factor; SD, standard deviation.

Li et al. Arthritis Research & Therapy 2010 12:R81   doi:10.1186/ar3006