Table 1

Clinical and laboratory characteristics in patients with rheumatoid arthritis (RA) and osteoarthritis (OA), and healthy control (HC) subjects.

Parameter

RA (n = 54)

OA (n = 20)

HC (n = 60)


Age (y)

48.2 (17-65)

61 (57-82)

43.4 (24-64)

Sex (female/male)

34/6

24/4

20/5

Median age at onset (y)

40 (13-63)

-

-

Median disease duration (m)

36 (3-444)

-

-

Number of tender joints

6.50 (0-28)

-

-

Number of swollen joints

1.50 (0-28)

-

-

ESR (mm/h)

37.5 (10-125)

-

-

CRP (mg/l)

10.32 (2.97-84.5)

-

-

RF (U/I)

76.4 (10.3-954)

-

-

DAS28-ESR

4.58 ± 2.08

-

-

BMI (kg/m2)

22.45 (16.65-28.55)

-

22.91 (17.33-26.17)

Total cholesterol (mmol/l)

4.41 (2.55-6.16)

-

5.19 (3.9-7.1)

Triglycerides (mmol/l)

1.44 (0.49-2.15)

-

1.46 (0.84-3.11)


The values shown represent the median and the ranges. BMI, body mass index; CRP C-reactive protein; DAS28, 28-joint Disease Activity Score; ESR, erythrocyte sedimentation rate; RF, rheumatoid factor.

Wang et al. Arthritis Research & Therapy 2012 14:R228   doi:10.1186/ar4067

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