Table 1

Demographic, laboratory and clinical data for the RA patient group (n = 143)

Parameters

Data

Median [IQR]

Range

Age (years)

48 ± 12

48 [41 to 56]

20 to 75

Females, n (%)

118 (82.5%)

Blacks, n (%)

124 (86.7%)

DAS28-CRP

5.6 ± 1.3

5.7 [4.8 to 6.7]

2.3 to 8.7

Disease duration (months)

12 ± 7

10 [6 to 18]

0 to 25

Larsen radiographic scores

23 ± 14

19 [14 to 28]

1 to 66

RF (IU/ml)

490 ± 795

168 [38 to 595]

4 to 5,350

aCCP (U/ml)

669 ± 636

492 [85 to 1,099]

2 to 2,527

CRP (μg/L)

24 ± 32

14 [5 to 32]

0 to 198

SAA (μg/ml)

62 ± 123

14 [5 to 65]

1 to 882

aCCP = anticyclic citrullinated peptide antibodies; CRP = C-reactive protein; DAS28 = Disease Activity Score in 28 joints; RF = rheumatoid factor; SAA = serum amyloid A. Data are means ± SD, n (%), medians [25th to 75th IQR] or raw data as indicated.

Meyer et al. Arthritis Research & Therapy 2011 13:R160   doi:10.1186/ar3479